{"title":"All The Parts","description":"","products":[{"product_id":"510-215","title":"Mozez - Maximum Effort - Naturally Aspirated Cylinder Head","description":"\u003cp\u003eMozez Cylinder Head Gen 2.  Recently updated and revised for maximum power.  \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003ePriced as Single Cylinder Head\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMilled rocker mounts for Jesel Rockers\u003c\/li\u003e\n\u003cli\u003eDesigned for any Gen III \/ Gen IV small block with \u003cstrong\u003e4.125\" bore or larger\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe 6-bolt design is compatible with GM LSX \u0026amp; RHS Blocks\u003c\/li\u003e\n\u003cli\u003eRaised runner racing intake port design\u003c\/li\u003e\n\u003cli\u003e10 degree intake w\/ 4 degree cant\u003c\/li\u003e\n\u003cli\u003e7 degree exhaust w\/ 2.5 degree cant\u003c\/li\u003e\n\u003cli\u003eUses a 2.250\" intake valve and 1.600\" exhaust valve\u003c\/li\u003e\n\u003cli\u003eHas a 352cc intake port\u003c\/li\u003e\n\u003cli\u003eHas a deck thickness of .750\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003eFor Use in Racing and Off Highway Use Vehicles Only\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eMozez is a Registered Trademark by Mast Motorsports.  The Maximum Effort LSX Engine Cylinder head \u0026amp; induction system.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/Mozez_Naturally_Aspirated_Head_Spec_Sheet.pdf?v=1645113308\" target=\"_blank\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eDownload the cylinder head spec sheet\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Mast Motorsports","offers":[{"title":"Bare","offer_id":39655639744711,"sku":"CH-LSX-510215","price":2499.99,"currency_code":"USD","in_stock":true},{"title":"All Titanium Valves","offer_id":39655639777479,"sku":"CH-LSX-600311","price":4700.0,"currency_code":"USD","in_stock":true},{"title":"Titanium Intake \u0026 Inconel Exhaust Valves","offer_id":39655639810247,"sku":"CH-LSX-600312","price":4030.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/mozez-cylinder-heads-mozez-maximum-effort-naturally-aspirated-cylinder-head-39989754888405.png?v=1682707900"},{"product_id":"510-216","title":"Mozez - Maximum Effort - Boosted Cylinder Head","description":"\u003cp\u003e\u003cspan\u003eMozez Cylinder Head Gen 2.  Recently updated and revised for maximum power.  \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003ePriced as Single Cylinder Head\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eMilled rocker mounts for Jesel Rockers\u003c\/li\u003e\n\u003cli\u003eDesigned for any Gen III \/ Gen IV small block with \u003cstrong\u003e4.125\" bore or larger\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eThe 6-bolt design is compatible with GM LSX \u0026amp; RHS Blocks\u003c\/li\u003e\n\u003cli\u003eRaised runner racing intake port design\u003c\/li\u003e\n\u003cli\u003eUtilizes SB2 valve covers\u003c\/li\u003e\n\u003cli\u003e10 degree intake w\/ 4 degree cant\u003c\/li\u003e\n\u003cli\u003e7 degree exhaust w\/ 2.5 degree cant\u003c\/li\u003e\n\u003cli\u003eUses a 2.250\" x 5\/16\" intake valve and 1.600\" x 11\/32\" exhaust valve\u003c\/li\u003e\n\u003cli\u003eHas a 352cc intake port\u003c\/li\u003e\n\u003cli\u003eHas a deck thickness of .750\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor Use in Racing and Off Highway Use Vehicles Only\u003c\/p\u003e\n\u003cp\u003eMozez is a Registered Trademark by Mast Motorsports.  The Maximum Effort LSX Engine Cylinder head \u0026amp; induction system.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/Mozez_Boosted_Head_Spec_Sheet.pdf?v=1645113424\" target=\"_blank\"\u003eDownload the cylinder head spec sheet\u003c\/a\u003e\u003c\/p\u003e","brand":"Mast Motorsports","offers":[{"title":"Bare","offer_id":39655610843335,"sku":"CH-LSX-510216","price":2750.0,"currency_code":"USD","in_stock":true},{"title":"Titanium Intake \u0026 Inconel Exhaust Valves","offer_id":39655610876103,"sku":"CH-LSX-600310","price":4030.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/mozez-cylinder-heads-mozez-maximum-effort-boosted-cylinder-head-39989754298581.png?v=1682707900"},{"product_id":"402-002","title":"Mast Gen IV Plug Wire Kit","description":"\u003cspan\u003eMast Motorsports' new Ultra 40 unsleeved custom-fit ignition wire sets are the most powerful and RFI\/EMI-resistant wires available for racing today. Plus, their closely woven fiberglass, silicone-impregnated insulation provides up to 8,000 extra volts of protection.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eFeatures of these 8.65mm wires include:\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003e* KEVLAR® core that's four times stronger than Aramid cores\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* Class-leading 40 ohms of resistance per foot\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* Nickel copper alloy conductors for superior spark energy transfer\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* Extra-thick EPDM layer for greater dielectric strength\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* High-temperature silicone boots that can withstand heat up to 600 degrees\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e* Locking stainless steel plug terminals\u003c\/span\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":890233463,"sku":"IG-LSX-402002","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/mast-motorsports-accessories-default-mast-gen-iv-plug-wire-kit-13523519832161.jpg?v=1629169421"},{"product_id":"ls-conversion-oil-pan","title":"LS Swap Oil Pan","description":"\u003cp\u003e\u003cem\u003e\u003cstrong\u003eBaffle Included!\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cem\u003e\u003cstrong\u003eCast AND Machined in the USA!\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe Mast LS Swap oil pan will greatly simplify the installation of an LS engine into your car or truck.  Don't cut corners on the most important part of your engine, LS Swap with Mast!\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSand cast aluminum ls oil pan – no leaking from fabricated\/welded seams\u003c\/li\u003e\n\u003cli\u003eTHE most universally designed LS engine swap conversion oil pan ever\u003c\/li\u003e\n\u003cli\u003eDesigned for swaps in to F-bodies (1st - 3rd), G-bodies, A-bodies, street rods \u0026amp; trucks\u003c\/li\u003e\n\u003cli\u003eThick cast pan rail maintains the pan as a stressed member\u003c\/li\u003e\n\u003cli\u003eInnovative oiling circuitry with -10AN fittings eliminates need for expensive adapters for remote oil coolers \u0026amp; oil filter\u003c\/li\u003e\n\u003cli\u003eUses production pan gasket for perfect seal (Sold Separately, GM Part Number 12612350)\u003c\/li\u003e\n\u003cli\u003eMaintains factory oil filter location\u003c\/li\u003e\n\u003cli\u003eCored and baffled for excellent oil control in Pro Touring, Auto Crossing \u0026amp; Road Racing applications\u003c\/li\u003e\n\u003cli\u003e“Cast-in” clearance fits most production windage trays or Mast LS short stroker windage tray\u003c\/li\u003e\n\u003cli\u003eShort front pan depth fits any chassis\u003c\/li\u003e\n\u003cli\u003eOptimum sump balances oil capacity and tight fit\/low ground clearance for most applications\u003c\/li\u003e\n\u003cli\u003eSump baffle cover included\u003c\/li\u003e\n\u003cli\u003eOil drain on driver side of sump\u003c\/li\u003e\n\u003cli\u003eRuns standard GM oil filters\u003c\/li\u003e\n\u003cli\u003eOptional remote cooler fittings for easy, inexpensive oil routing options\u003c\/li\u003e\n\u003cli\u003eOptional cap and fittings for remote filter and cooler routing options\u003c\/li\u003e\n\u003cli\u003eIncludes oil pickup to fit almost any stroke\u003c\/li\u003e\n\u003cli\u003eEnlarged oil passage holes for reduced oil pressure losses\u003c\/li\u003e\n\u003cli\u003eInternal cross drill eliminates external oil loop cap when using standard filter\u003c\/li\u003e\n\u003cli\u003eProduction GM pressure relief valve bypass built into pan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eThe following parts are required to complete your oil pan installation:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDipstick - GM Part Number \u003cstrong\u003e12551581\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eDipstick Tube - GM Part Number \u003cstrong\u003e125551577\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eLS Oil Pan Gasket (Can reuse factory) - GM Part Number \u003cstrong\u003e12612350\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOil Filter - AC Delco PN \u003cstrong\u003ePF-46\u003c\/strong\u003e or Equivalent\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf using a Remote Oil Cooler, Oil Filter or Accumulator you \u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eMUST\u003c\/strong\u003e\u003c\/span\u003e use Mast Motorsports specially designed fittings. Failure to use the Mast fittings will result in engine failure.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/drive.google.com\/a\/mastmotorsports.com\/file\/d\/0B-vWyoakHRqsT3VxN29pdGh6ME0\/view?usp=sharing\" target=\"_blank\" title=\"Mast LS Oil Pan User Manual\" rel=\"noopener noreferrer\"\u003eOwners Manual\u003c\/a\u003e\u003c\/p\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":928020171,"sku":"OS-LSX-401111","price":465.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/mast-motorsports-accessories-plugged-ls-swap-oil-pan-11779323134049.png?v=1614267531"},{"product_id":"mast-small-bore-rocker-stands","title":"Mast Small Bore Rocker Stand","description":"\u003cp\u003eBillet rocker stand for Mast Black Label Small Bore heads.  This stand will allow you to run factory LS3 rockers on your Mast Black Label LS1 215 and LS3 240 Small Bore Heads.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eSold Per Head - 2 Required per engine!\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":1107145947,"sku":"RK-LSX-491001","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/mast-motorsports-accessories-mast-small-bore-rocker-stand-999057143.jpg?v=1573602753"},{"product_id":"mast-medium-bore-rocker-stands","title":"Mast Medium Bore Rocker Stand","description":"\u003cp\u003eBillet rocker stands for Mast Black Label Medium Bore head.  This stand will allow you to run factory LS3 rockers on your Mast Black Label LS1 245, LS3 255 and LS7 265 Medium Bore Heads.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eSold Per Head - 2 Required per engine!\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":1107883887,"sku":"RK-LSX-491003","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/mast-motorsports-accessories-mast-medium-bore-rocker-stand-999232927.jpg?v=1573601671"},{"product_id":"mast-large-bore-rocker-stands","title":"Mast Large Bore Rocker Stand","description":"\u003cp\u003eBillet rocker stands for Mast Black Label Large Bore heads.  These stands will allow you to run factory LS7 rockers on Mast Black Label LS1 275, LS1 295, LS3 280, LS7 285 and LS7 305 Large Bore Heads.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003e\u003cstrong\u003eSold Per Head - 2 Required per engine!\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":1107888739,"sku":"RK-LSX-491005","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/mast-motorsports-accessories-mast-large-bore-rocker-stand-13525191917665.jpg?v=1629169423"},{"product_id":"mast-one-piece-pushrods-8-150","title":"Mast Black Label One Piece Chrome Moly Pushrods 8.150\" | Set of 16","description":"\u003cp\u003eMast Motorsports 8.150\" pushrods are a hardened one piece chromoly 3\/8\" pushrod that feature .080\" thick walls and are 8.150\" long.  Recommended for engines running Mast Black Label Medium Bore heads and hydraulic lifters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMast Black Label Medium Bore LS3 \u0026amp; LS7 Cylinder Heads\u003c\/li\u003e\n\u003cli\u003eFactory Mast Medium Bore LS3 Cylinder Heads\u003c\/li\u003e\n\u003cli\u003eMast Black Label Small Bore Cathedral \u0026amp; LS3 Heads\u003c\/li\u003e\n\u003cli\u003eMast Black Label Large Bore LT Cylinder Head\u003c\/li\u003e\n\u003cli\u003eFactory Rocker Arms\u003c\/li\u003e\n\u003cli\u003eFactory Hydraulic Lifter\u003c\/li\u003e\n\u003cli\u003eSold as a set of 16.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":7807805379,"sku":"PR-LSX-934815","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/mast-motorsports-valvetrain-mast-one-piece-pushrods-8-150-set-of-16-5474913155.jpg?v=1573602869"},{"product_id":"copy-of-mast-one-piece-pushrods-8-050","title":"Mast Black Label One Piece Chrome Moly Pushrods 8.050\" | Set of 16","description":"\u003cp\u003eMast Motorsports 8.050\" pushrods are a hardened one piece chromoly 3\/8\" pushrod that feature .080\" thick walls and are 8.050\" long.  Recommended for engines running Mast Black Label large bore heads and hydraulic lifters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMast Black Label Large Bore LS3 \u0026amp; LS7 Cylinder Heads\u003c\/li\u003e\n\u003cli\u003eFactory Mast Large Bore LS3 \u0026amp; LS7 Cylinder Heads\u003c\/li\u003e\n\u003cli\u003eFactory Rocker Arms\u003c\/li\u003e\n\u003cli\u003eFactory Hydraulic Lifter\u003c\/li\u003e\n\u003cli\u003eSold as a set of 16\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":7807816195,"sku":"PR-LSX-934805","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/mast-motorsports-valvetrain-mast-one-piece-pushrods-8-050-set-of-16-5474919427.jpg?v=1573605843"},{"product_id":"gm-dipstick-pn","title":"GM Dipstick for Mast Oil Pan - PN 12551581","description":"\u003cspan\u003eGM Dipstick for use with the Mast LS Conversion oil pan.  Also requires PN 12551577, GM Dipstick Tube.\u003c\/span\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":7882206339,"sku":"12551581","price":19.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/mast-motorsports-gm-dipstick-for-mast-oil-pan-pn-12551581-5522869059.jpg?v=1573600290"},{"product_id":"gm-ls-oil-pan-gasket-12612351","title":"GM LS Oil Pan Gasket - 12612350","description":"\u003cdiv\u003e\n\u003cp\u003eKeep your performance engine sealed properly to eliminate troublesome oil leaks with these one-piece neoprene seal oil pan gaskets from Chevrolet Performance. \u003c\/p\u003e\n\u003cp\u003eDoes not fit LS7 and LS9 engines.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":8098087043,"sku":"12612350","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/mast-motorsports-gm-ls-oil-pan-gasket-12612350-5679728963.jpg?v=1573605724"},{"product_id":"mast-ls-valve-cover-kit-race","title":"Mast LS Cast Valve Cover Kit - Pair","description":"\u003cp\u003eMast Motorsports sand cast valve covers are made right here in the USA.  They fit center bolt LS cylinder heads and clear most shaft mount rocker arms.  Machined for additional rocker clearances and additional venting.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1 Pair Valve Covers\u003c\/li\u003e\n\u003cli\u003eValve Cover Gaskets\u003c\/li\u003e\n\u003cli\u003eMounting Bolts and Grommets\u003c\/li\u003e\n\u003cli\u003eOil Fill Cap\u003c\/li\u003e\n\u003cli\u003ePipe Plug \u003c\/li\u003e\n\u003cli\u003e-12 ORB fittings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eOptions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCoil mount kit \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Natural","offer_id":40146628346055,"sku":"CA-LSX-114304","price":425.0,"currency_code":"USD","in_stock":false},{"title":"Krinkle Black Powdercoat","offer_id":40146628378823,"sku":"CA-LSX-114304B","price":449.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/mast-motorsports-accessories-mast-ls-valve-cover-kit-pair-29609701310663.png?v=1623085272"},{"product_id":"mast-stroker-windage-tray","title":"Mast Stroker Windage Tray","description":"\u003cspan\u003eAdd horsepower and get superior protection for your GM LS stroker engine with Mast’s all-new Black Label windage tray. The custom engineered contours optimize oil return to the sump while providing optimum protection against oil splashback. The Mast Black Label windage tray (P\/N 401-015) fits all GM LS oil pans except 4th Gen F-Body that require a Short Length (P\/N 401-014) and is ideal for racing or street\/strip applications. The windage tray clears up to a 4.250” stroke crankshaft with H-beam connecting rods, is compatible with multiple pickup tubes, and accepts factory GM windage tray nuts\u003c\/span\u003e","brand":"Mast Motorsports","offers":[{"title":"Long","offer_id":23380417094,"sku":"OS-LSX-401015","price":102.0,"currency_code":"USD","in_stock":true},{"title":"Short (Fits Mast, Holley and GM Conversion Pans)","offer_id":23380417158,"sku":"OS-LSX-401014","price":92.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/WindageTrays1.png?v=1634350900"},{"product_id":"mast-ls-oil-pan-remote-oil-cooler-fittings","title":"Mast LS Oil Pan Remote Oil Cooler Fittings","description":"Mast Motorsports LS conversion oil pan utilizes unique oiling circuitry that is found on no other oil pan.  If you want to run a remote oil cooler on your LS with the Mast pan, the Mast Oil Cooler Fittings will get you there.","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":25619054278,"sku":"OS-LSX-401112","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/mast-motorsports-accessories-mast-ls-oil-pan-remote-oil-cooler-fittings-38242002108629.png?v=1659462337"},{"product_id":"ls-stroker-oil-pan","title":"LS Stroker Oil Pan Kit","description":"\u003cp\u003e\u003cem\u003e\u003cstrong\u003eNew, Mast Stroker Oil Pan Kit!\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cem\u003e\u003cstrong\u003eCast AND Machined in the USA, includes our stroker windage tray that clears massive 4.250\" stroke cranks!\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe Mast LS Stroker oil pan will greatly simplify the installation of a big-inch LS engine into your car or truck.  Don't cut corners on the most important part of your engine, LS Swap with Mast!\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSand cast aluminum ls oil pan – no leaking from fabricated\/welded seams\u003c\/li\u003e\n\u003cli\u003eTHE most universally designed LS engine swap conversion oil pan ever\u003c\/li\u003e\n\u003cli\u003eDesigned for swaps in to F-bodies (1st - 3rd), G-bodies, A-bodies, street rods \u0026amp; trucks\u003c\/li\u003e\n\u003cli\u003eThick cast pan rail maintains the pan as a stressed member\u003c\/li\u003e\n\u003cli\u003eInnovative oiling circuitry with -10AN fittings eliminates need for expensive adapters for remote oil coolers \u0026amp; oil filter\u003c\/li\u003e\n\u003cli\u003eUses production pan gasket for perfect seal (Sold Separately, GM Part Number 12612350)\u003c\/li\u003e\n\u003cli\u003eMaintains factory oil filter location\u003c\/li\u003e\n\u003cli\u003eCored and baffled for excellent oil control in Pro Touring, Auto Crossing \u0026amp; Road Racing applications\u003c\/li\u003e\n\u003cli\u003e“Cast-in” clearance fits most production windage trays or Mast LS short stroker windage tray\u003c\/li\u003e\n\u003cli\u003eShort front pan depth fits any chassis\u003c\/li\u003e\n\u003cli\u003eOptimum sump balances oil capacity and tight fit\/low ground clearance for most applications\u003c\/li\u003e\n\u003cli\u003eSump baffle cover included\u003c\/li\u003e\n\u003cli\u003eOil drain on driver side of sump\u003c\/li\u003e\n\u003cli\u003eRuns standard GM oil filters\u003c\/li\u003e\n\u003cli\u003eChoose Optional remote cooler fittings for easy, inexpensive oil routing options\u003c\/li\u003e\n\u003cli\u003eOil Pan comes with Cooler Options Plugged - Select Oil Cooler Add on for additional fittings for your auxiliary oil cooler.\u003c\/li\u003e\n\u003cli\u003eIncludes oil pickup to fit almost any stroke\u003c\/li\u003e\n\u003cli\u003eEnlarged oil passage holes for reduced oil pressure losses\u003c\/li\u003e\n\u003cli\u003eInternal cross drill eliminates external oil loop cap when using standard filter\u003c\/li\u003e\n\u003cli\u003eProduction GM pressure relief valve bypass built into the pan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eThe Mast LS Stroker Oil Pan kit comes complete with the following components:\u003cbr\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003e\u003cstrong\u003eMast LS Oil Pan\u003c\/strong\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cstrong\u003e\u003cem\u003e\u003cstrong\u003eMast Stroker Windage Tray\u003cbr\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cstrong\u003e\u003cem\u003e\u003cstrong\u003e\u003cem\u003e\u003cstrong\u003eDipstick and Dipstick Tube\u003c\/strong\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003e\u003cstrong\u003eOil Filter\u003c\/strong\u003e\u003c\/em\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cstrong\u003eOil Pan Gasket\u003c\/strong\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cstrong\u003e\u003cem\u003e\u003cstrong\u003eOil Pan Bolts\u003c\/strong\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003eIf using a Remote Oil Cooler, Oil Filter or Accumulator you \u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eMUST\u003c\/strong\u003e\u003c\/span\u003e use Mast Motorsports specially designed fittings. Failure to use the Mast fittings will result in engine failure.\u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Mast LS Oil Pan User Manual\" href=\"https:\/\/drive.google.com\/a\/mastmotorsports.com\/file\/d\/0B-vWyoakHRqsT3VxN29pdGh6ME0\/view?usp=sharing\" target=\"_blank\"\u003eOwners Manual\u003c\/a\u003e\u003c\/p\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":31929526812769,"sku":"OS-LSX-401120","price":605.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/mast-motorsports-accessories-ls-stroker-oil-pan-kit-30739991625927.jpg?v=1631758186"},{"product_id":"hurricane-750hp-supercharged-airboat-engine","title":"427ci | LS Supercharged Engine","description":"\u003cp style=\"text-align: center;\"\u003eEngine pricing \u0026amp; lead times vary - please call \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e1-866-551-4916 for pricing \u0026amp; delivery estimate.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/airtable.com\/app1GO7hNT6zpA60j\/pagvNV3bFTNeJTxEO\/form\" rel=\"noopener\" target=\"_blank\"\u003eClick here to request a custom engine with our free engine quote questionaire.\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cem\u003e\u003cstrong\u003eLS Spec 427 Cubic Inch Supercharged (LS3 or LS7 Heads)\u003c\/strong\u003e\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eType: LS 7.0L\u003cbr\u003eDisplacement: 427 Cubic Inches\u003cbr\u003eBore x Stroke: 4.125 x 4.000\u003cbr\u003eCrank: 4340 Forged \u003cbr\u003eRods: 4340 Forged H-Beam\u003cbr\u003ePistons: 2618 Forged Dish\u003cbr\u003eCam: Mast Custom 3-Bolt Camshaft\u003cbr\u003eHeads: Black Label CNC Ported Made in USA\u003cbr\u003eIntake: Supercharger (Whipple or Harrop)\u003cbr\u003eValve Springs: Mast Dual Valve Springs\u003c\/p\u003e\n\u003cp\u003eMast Resleeve Aluminum Block (Darton Sleeves)\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eEngine Rated for 700-900 HP - Customer Determined\u003c\/p\u003e\n\u003cp\u003eAll Engines are Dyno Tested for Quality \u0026amp; Validation Prior To Shipment\u003c\/p\u003e\n\u003cp\u003eOptions:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHolley ECM - Terminator or Dominator\u003c\/li\u003e\n\u003cli\u003eHaltech - All Options\u003c\/li\u003e\n\u003cli\u003eFront Accessory Drive Customer Specific (Call for Quote\/Options)\u003c\/li\u003e\n\u003cli\u003eTurn Key (Call for Quote)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":32054642049121,"sku":"","price":34999.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/mast-motorsports-hurricane-750hp-supercharged-airboat-engine-14829981270113.png?v=1587066638"},{"product_id":"416ci-factory-mast-crate-engine-600hp","title":"427ci |  LS Crate Engine | Factory Mast Cylinder Heads","description":"\u003cp style=\"text-align: center;\"\u003eEngine pricing \u0026amp; lead times vary - please call \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e1-866-551-4916 for pricing \u0026amp; delivery estimate.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/airtable.com\/app1GO7hNT6zpA60j\/pagvNV3bFTNeJTxEO\/form\" rel=\"noopener\" target=\"_blank\"\u003eClick here to request a custom engine with our free engine quote questionaire.\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFactory Mast Engines Deliver Turn Key Crate Engine quality.\u003c\/p\u003e\n\u003cp\u003eFactory Mast hand builds each engine, and remanufactures components to bring you only the highest quality turn key engine available.\u003c\/p\u003e\n\u003cp\u003eFactory Mast LS engines come standard with Factory Mast as Cast large bore heads\u003c\/p\u003e\n\u003cp\u003e\u003cu\u003eEVERY\u003c\/u\u003e Engine is dyno tested, and pre-programmed with a baseline dyno tune*, to get you on the road faster.  Backed by the \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/Mast_Motorsports_Terms_Conditions_2020.pdf?v=1600442096\"\u003eMast Limited Warranty.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eSpecs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e427 Cubic Inch\u003c\/li\u003e\n\u003cli\u003eFactory Mast LS Re-Sleeve remanufactured Block EB-LSX-302404\u003c\/li\u003e\n\u003cli\u003eReady to Run - Wire \u0026amp; Drive\u003c\/li\u003e\n\u003cli\u003eHP Rated at 625+ HP\u003c\/li\u003e\n\u003cli\u003eLS3 Style Port Heads\u003c\/li\u003e\n\u003cli\u003eHolley ECM \u0026amp; Wiring Harness\u003c\/li\u003e\n\u003cli\u003eDrive by Cable Throttle Body\u003c\/li\u003e\n\u003cli\u003eComes with Starter, water pump\u003c\/li\u003e\n\u003cli\u003eAll Engine Controls, wiring harness\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e* We recommend final tune be done in your vehicle for ultimate drive-ability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Mast Motorsports","offers":[{"title":"No","offer_id":32647329874017,"sku":"EN-LS3-116559","price":20995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/mast-motorsports-crate-engines-416ci-factory-mast-ls-crate-engine-600hp-15980227493985.jpg?v=1605701017"},{"product_id":"super-late-model-engine","title":"LS Endurance Race Engine 700+ HP | Aluminum Race Block | Solid Roller","description":"\u003cp style=\"text-align: center;\"\u003eEngine pricing \u0026amp; lead times vary - please call \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e1-866-551-4916 for pricing \u0026amp; delivery estimate.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" href=\"https:\/\/airtable.com\/app1GO7hNT6zpA60j\/pagvNV3bFTNeJTxEO\/form\" target=\"_blank\"\u003eClick here to request a custom engine with our free engine quote questionaire.\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":32624242163809,"sku":"","price":60000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/mast-motorsports-crate-engines-super-late-model-engine-15894274179169.jpg?v=1597769204"},{"product_id":"dual-1-525-valve-spring-kit-drag-race","title":"Drag Race and Marine 1.525 Valve Spring Kit - Solid Roller LSX","description":"\u003cp\u003e1.525 OD - Dual Drag Race Valve Spring \u0026amp; Titanium Retainer Kit\u003c\/p\u003e\n\u003cp\u003eUtilize all the valve spring space that Mast Motorsports Cylinder heads offer!\u003c\/p\u003e\n\u003cp\u003eChoose the dual drag race valve spring kit that pros use.  Mast Motorsports designs all of its cylinder heads to accommodate a professionally sized racing valve spring.  No more trying to cram a valve spring into your LS spring pocket, which may prove to be inferior.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eKits Comes Complete \u0026amp; ready to rock with:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1.525 OD Dual Valve Springs - Standard Finish\u003c\/li\u003e\n\u003cli\u003eTitanium Spring Retainer\u003c\/li\u003e\n\u003cli\u003eSteel Valve Locks\u003c\/li\u003e\n\u003cli\u003eHardened Valve Spring ID Locator\u003c\/li\u003e\n\u003cli\u003e805V - Valve Stem Seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Specifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstalled Height \u0026amp; Load @ 2.000\" @ 250 lbs\u003c\/li\u003e\n\u003cli\u003eOpen Height \u0026amp; Load @ 1.200\" @ 775 lbs\u003c\/li\u003e\n\u003cli\u003eValve Lift- Maximum 0.800\" Lift\u003c\/li\u003e\n\u003cli\u003eRetainer Weight\u003c\/li\u003e\n\u003cli\u003eRetainer Lock Style - 8 degree - Mini Locks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e ***  Requires (+) 0.100 - 5.550\" Length Valve for Mast Cylinder Heads\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":37396739555527,"sku":"VS-UNV-100138","price":950.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/SpringKit3_35ecf055-1af5-4d07-ba05-5e0bf55fbbaa.png?v=1644720499"},{"product_id":"copy-of-dual-1-525-valve-spring-kit-drag-race","title":"Drag Race and Marine 1.525 Valve Spring Kit - Solid Roller LSX - Polished","description":"\u003cp\u003e1.525 OD - Fully Polished Dual Drag Race Valve Spring \u0026amp; Titanium Retainer Kit\u003c\/p\u003e\n\u003cp\u003eUtilize all the valve spring space that Mast Motorsports Cylinder heads offer!\u003c\/p\u003e\n\u003cp\u003eChoose the dual drag race valve spring kit that pros use.  Mast Motorsports designs all of its cylinder heads to accommodate a professionally sized racing valve spring.  No more trying to cram a valve spring into your LS spring pocket, which may prove to be inferior.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eKits Comes Complete \u0026amp; ready to rock with:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1.525 OD Dual Valve Springs - Fully Polished\u003c\/li\u003e\n\u003cli\u003eTitanium Spring Retainer\u003c\/li\u003e\n\u003cli\u003eTitanium Valve Locks\u003c\/li\u003e\n\u003cli\u003eHardened Valve Spring ID Locator\u003c\/li\u003e\n\u003cli\u003e805V - Valve Stem Seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Specifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eREM Polished - Endurance Max Life Process\u003c\/li\u003e\n\u003cli\u003eInstalled Height \u0026amp; Load @ 2.000\" @ 250 lbs\u003c\/li\u003e\n\u003cli\u003eOpen Height \u0026amp; Load @ 1.200\" @ 775 lbs\u003c\/li\u003e\n\u003cli\u003eValve Lift- Maximum 0.800\" Lift\u003c\/li\u003e\n\u003cli\u003eRetainer Weight\u003c\/li\u003e\n\u003cli\u003eRetainer Lock Style - 8 degree - Mini Locks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e ***  Requires (+) 0.100 - 5.550\" Length Valve for Mast Cylinder Heads\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":37397512290503,"sku":"VS-UNV-100139","price":1150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/SpringKit3.png?v=1644718173"},{"product_id":"copy-of-dual-1-525-valve-spring-kit-drag-race-1","title":"LSX Endurance Solid Roller Valve Spring Kit - High RPM \u0026 High Lift","description":"\u003cp\u003e1.300 OD - Circle Track Endurance High RPM Spring Kit\u003c\/p\u003e\n\u003cp\u003eUse this specially design small diameter valve spring for your endurance applications like, Drifting, Circle Track, Endurance Marine.\u003c\/p\u003e\n\u003cp\u003eSpecially designed and engineered to be a light weight high rate, high natural frequency spring.  Reduce the amount of spring surge by increasing your spring rate, and reducing your mass.  This is your package!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan style=\"text-decoration: underline;\"\u003eKits Comes Complete \u0026amp; ready to rock with:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e1.300 OD Dual Valve Springs - Fully REM Polished\u003c\/li\u003e\n\u003cli\u003eTitanium Spring Retainer\u003c\/li\u003e\n\u003cli\u003eTitanium Bead Locks\u003c\/li\u003e\n\u003cli\u003eHardened Valve Spring ID Locator\u003c\/li\u003e\n\u003cli\u003e805V - Valve Stem Seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eKit Specifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eREM Polish Max Effort Process\u003c\/li\u003e\n\u003cli\u003eInstalled Height \u0026amp; Load @ 1.920\" @ 182 lbs\u003c\/li\u003e\n\u003cli\u003eOpen Height \u0026amp; Load @ 1.120\" @ 700 lbs\u003c\/li\u003e\n\u003cli\u003eSpring Rate 648 lbs\/inch\u003c\/li\u003e\n\u003cli\u003eValve Lift- Maximum 0.800\" Lift\u003c\/li\u003e\n\u003cli\u003eRetainer Lock Style - 8 degree - Mini Locks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":37397788164295,"sku":"VS-UNV-100157","price":1399.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/SpringKit1_9eee404e-de5c-4431-bec2-df750c3693a3.png?v=1644718699"},{"product_id":"factory-mast-godzilla-cnc-ported-cylinder-heads","title":"Godzilla CNC ported Cylinder Heads - Street Performance","description":"\u003cp\u003eChoose Factory Mast to CNC port your factory cylinder heads.  CNC porting allows for improved airflow when choosing an upgraded camshaft or performance package.  Factory Mast Baseline CNC port improves airflow over factory configuration.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e\u003cstrong\u003eDetails:\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCNC Porting pair (2pcs) cylinder heads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/Godzilla_Spec_Sheet_v3.pdf?v=1647978914\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eDownload the cylinder head spec sheet\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eFlow Details\u003c\/h2\u003e\n\u003ctable width=\"534\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"101\"\u003e\u003c\/td\u003e\n\u003ctd width=\"101\"\u003eFactory OE\u003c\/td\u003e\n\u003ctd width=\"118\"\u003eCNC Street Port\u003c\/td\u003e\n\u003ctd width=\"107\"\u003eCNC Street Port\u003c\/td\u003e\n\u003ctd width=\"107\"\u003eCNC Street Port\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLift\u003c\/td\u003e\n\u003ctd\u003eCFM Output\u003c\/td\u003e\n\u003ctd\u003eCFM Output\u003c\/td\u003e\n\u003ctd\u003eCFM Increase\u003c\/td\u003e\n\u003ctd\u003eCFM % Increase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.100\u003c\/td\u003e\n\u003ctd\u003e68.4\u003c\/td\u003e\n\u003ctd\u003e69.1\u003c\/td\u003e\n\u003ctd\u003e0.7\u003c\/td\u003e\n\u003ctd\u003e1%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.200\u003c\/td\u003e\n\u003ctd\u003e147.5\u003c\/td\u003e\n\u003ctd\u003e148.0\u003c\/td\u003e\n\u003ctd\u003e0.5\u003c\/td\u003e\n\u003ctd\u003e0%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.300\u003c\/td\u003e\n\u003ctd\u003e221.7\u003c\/td\u003e\n\u003ctd\u003e229.9\u003c\/td\u003e\n\u003ctd\u003e8.2\u003c\/td\u003e\n\u003ctd\u003e4%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.400\u003c\/td\u003e\n\u003ctd\u003e268.2\u003c\/td\u003e\n\u003ctd\u003e290.5\u003c\/td\u003e\n\u003ctd\u003e22.3\u003c\/td\u003e\n\u003ctd\u003e8%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.500\u003c\/td\u003e\n\u003ctd\u003e298.8\u003c\/td\u003e\n\u003ctd\u003e316.2\u003c\/td\u003e\n\u003ctd\u003e17.4\u003c\/td\u003e\n\u003ctd\u003e6%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.600\u003c\/td\u003e\n\u003ctd\u003e301.1\u003c\/td\u003e\n\u003ctd\u003e340.7\u003c\/td\u003e\n\u003ctd\u003e39.6\u003c\/td\u003e\n\u003ctd\u003e12%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.700\u003c\/td\u003e\n\u003ctd\u003e305.0\u003c\/td\u003e\n\u003ctd\u003e356.0\u003c\/td\u003e\n\u003ctd\u003e51.0\u003c\/td\u003e\n\u003ctd\u003e14%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.800\u003c\/td\u003e\n\u003ctd\u003e308.4\u003c\/td\u003e\n\u003ctd\u003e368.3\u003c\/td\u003e\n\u003ctd\u003e59.9\u003c\/td\u003e\n\u003ctd\u003e16%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e0.900\u003c\/td\u003e\n\u003ctd\u003e307.8\u003c\/td\u003e\n\u003ctd\u003e375.4\u003c\/td\u003e\n\u003ctd\u003e67.6\u003c\/td\u003e\n\u003ctd\u003e18%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Mast Motorsports","offers":[{"title":"Core Supplied","offer_id":42505061335253,"sku":"CH-FD2-302514","price":2299.0,"currency_code":"USD","in_stock":true},{"title":"Core Not Supplied","offer_id":42505061368021,"sku":"CH-FD2-302374","price":2799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/factory-mast-cylinder-heads-godzilla-cnc-ported-cylinder-heads-street-performance-39989740404949.png?v=1682706817"},{"product_id":"mozez-intake-components-select-your-own","title":"Mozez - 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16 Injector\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMN-LSX-600104\u003c\/td\u003e\n\u003ctd\u003eMozez Forward Facing Lid - No Burst Panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMN-LSX-600105\u003c\/td\u003e\n\u003ctd\u003eMozez Forward Facing Lid - Machined for Burst Panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMN-LSX-600106\u003c\/td\u003e\n\u003ctd\u003eMozez Forward Facing Throttle Body Adapter 125mm \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFS-LSX-600121\u003c\/td\u003e\n\u003ctd\u003eBlower Shop Burst Panel (SFI Spec 23.1 | 200-250 PSI burst pressure)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFS-LSX-600115\u003c\/td\u003e\n\u003ctd\u003eMozez Fuel Rail \u0026amp; Bracket Kit (pair) 8 injector setup -12 AN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFS-LSX-600116\u003c\/td\u003e\n\u003ctd\u003eMozez Fuel Rail \u0026amp; Bracket Kit (pair) 16 injector setup -12 AN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFS-LSX-600117\u003c\/td\u003e\n\u003ctd\u003eMozez Fuel Rail Bracket Kit 16 injector setup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFS-LSX-600118\u003c\/td\u003e\n\u003ctd\u003eMozez Fuel Rail Bracket Kit 8 injector setup\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFS-LSX-600119\u003c\/td\u003e\n\u003ctd\u003eAccufab Max 125mm Throttle Body - PN U125MAX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Mast Motorsports","offers":[{"title":"Lower Intake - Standard Deck - 8 injector","offer_id":39694771028167,"sku":"MN-LSX-600100","price":2950.0,"currency_code":"USD","in_stock":true},{"title":"Lower Intake - Standard Deck - 16 injector","offer_id":39694772994247,"sku":"MN-LSX-600101","price":3100.0,"currency_code":"USD","in_stock":true},{"title":"Lower Intake - Tall Deck - 8 Injector","offer_id":39694793113799,"sku":"MN-LSX-600102","price":2950.0,"currency_code":"USD","in_stock":true},{"title":"Lower Intake - Tall Deck - 16 injector","offer_id":39694798782663,"sku":"MN-600103","price":3100.0,"currency_code":"USD","in_stock":true},{"title":"Forward Facing Lid - No Burst Panel","offer_id":39694809694407,"sku":"MN-LSX-600104","price":1250.0,"currency_code":"USD","in_stock":true},{"title":"Forward Facing Lid - W\/ Burst Panel","offer_id":39694813429959,"sku":"MN-LSX-600105","price":1335.0,"currency_code":"USD","in_stock":true},{"title":"Forward Facing Throttle Body Adapter","offer_id":39694818377927,"sku":"MN-LSX-600106","price":895.0,"currency_code":"USD","in_stock":true},{"title":"Blower Shop Burst Panel","offer_id":39694823588039,"sku":"FS-LSX-600121","price":175.0,"currency_code":"USD","in_stock":true},{"title":"Fuel Rail Kit - 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please call \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e1-866-551-4916 for pricing \u0026amp; delivery estimate.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/airtable.com\/app1GO7hNT6zpA60j\/pagvNV3bFTNeJTxEO\/form\" rel=\"noopener\" target=\"_blank\"\u003eClick here to request a custom engine with our free engine quote questionaire.\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eMast Motorsports has built and fielded more than 2,000 engines since its inception.  With every SINGLE one tested or validated on a dyno before it ships.  \u003c\/p\u003e\n\u003cp\u003eWe take our experience, testing, and validation to offer the staple of LSX Engine power with the Mozez Series Engine.  \u003c\/p\u003e\n\u003cp\u003eThe Mozez platform is capable of 1,000 (+) HP for Boosted or Natually Aspirated Applications.\u003c\/p\u003e\n\u003cp\u003eEach Mozez engine is custom tailored to you and your applications, and is built for the fastest racing classes in the world.  We only take 2 clients for Mozez builds per year.\u003c\/p\u003e\n\u003cp\u003ePrices starting at $49,000 - your build may vary\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eBlock Options\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eLSR Standard or Tall Deck with Water\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eLSR Standard or Tall Deck Dry - No Water\u003c\/li\u003e\n\u003cli\u003eEnergy Solid Billet Block\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eRotating Assembly\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eBillet Crank of your choice\u003c\/li\u003e\n\u003cli\u003eCustom Wiseco or CP Pistons\u003c\/li\u003e\n\u003cli\u003eBillet or Forged Connecting Rods\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eCylinder Head Options\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eMozez - 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Pro Series Dual Valve Springs\u003c\/li\u003e\n\u003cli\u003eJesel Keyway Solid Roller Lifters\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOiling System\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eDaily Dry Sump\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOther Key Note Components\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003eAll ARP Fasteners\u003c\/li\u003e\n\u003cli\u003eCometic Head Gaskets\u003c\/li\u003e\n\u003cli\u003eATI Balancer\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":39695373828295,"sku":"Mozez AF","price":60000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/mast-motorsports-mozez-custom-engine-28675167256775.jpg?v=1618319492"},{"product_id":"427ci-factory-mast-lst-genv-crate-engine-625hp-offroad-spec","title":"427ci GM LT Gen V | Aluminum Re-Sleeve Block | Wet Sump | Factory Mast Heads","description":"\u003cp style=\"text-align: center;\"\u003eEngine pricing \u0026amp; lead times vary - please call \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e1-866-551-4916 for pricing \u0026amp; delivery estimate.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" href=\"https:\/\/airtable.com\/app1GO7hNT6zpA60j\/pagvNV3bFTNeJTxEO\/form\" target=\"_blank\"\u003eClick here to request a custom engine with our free engine quote questionaire.\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eMast Motorsports 427 Cubic inch GM Gen V LT engine- Port Fuel injection or Direct Injection- Wet Sump Applications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eMast hand builds each engine, and remanufactures components to bring you only the highest quality engine available.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eSpecs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e427 Cubic Inch\u003c\/li\u003e\n\u003cli\u003eFactory Mast GM Gen V Re-Sleeve Block\u003c\/li\u003e\n\u003cli\u003eFactory Mast LST Conversion Large Valve Heads (CNC Ported)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePerformance Camshaft with Dual Spring \u0026amp; Titanium Retainers\u003c\/li\u003e\n\u003cli\u003eFactory Mast LT2 LST Conversion Intake - Port Injection Optional\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eSupplied with Ignition Coils\u003c\/li\u003e\n\u003cli\u003eHP Rated at 660+ HP\u003c\/li\u003e\n\u003cli\u003eFactory Mast L8T Based Front Accessory Drive\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOptions-\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdd Air Conditioning Accessory Drive \u0026amp; Sanden Pump\u003c\/li\u003e\n\u003cli\u003eHolley Terminator ECM with Wiring Harness - Port Fuel Injection\u003c\/li\u003e\n\u003cli\u003eHolley Dominator ECM with Wirting Harness - Direct Injection or Port Injection\u003c\/li\u003e\n\u003cli\u003eHaltech ECM with Wiring Harness (Only Port Fuel Injection)\u003c\/li\u003e\n\u003cli\u003eValve Covers of your choice\u003c\/li\u003e\n\u003cli\u003eDirect Injection or Port Fuel Injection\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTurn Key with Sensors, Starter, Flywheel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStreet Car\u003c\/li\u003e\n\u003cli\u003eRoad Racing \u0026amp; Performance\u003c\/li\u003e\n\u003cli\u003eOff Road\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e* We recommend final tune be done in your vehicle for ultimate drive-ability.  \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":51641948111061,"sku":"EN-LST-302427","price":24999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/factory-mast-crate-engines-427ci-factory-mast-lst-genv-crate-engine-625hp-offroad-spec-30266626179271.png?v=1626584312"},{"product_id":"427ci-factory-mast-lst-genv-crate-engine-625hp-autocross-spec-dry-sump","title":"427ci GM LT Gen V  | Aluminum Re-Sleeve Block | Dry Sump | Factory Mast Heads","description":"\u003cp style=\"text-align: center;\"\u003eEngine pricing \u0026amp; lead times vary - please call \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e1-866-551-4916 for pricing \u0026amp; delivery estimate.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/airtable.com\/app1GO7hNT6zpA60j\/pagvNV3bFTNeJTxEO\/form\" rel=\"noopener\" target=\"_blank\"\u003eClick here to request a custom engine with our free engine quote questionaire.\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eMast Motorsports 427 Cubic inch GM Gen V LT engine- Port Fuel injection or Direct Injection- Dry Sump- Performance Engine\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eMast hand builds each engine, and remanufactures components to bring you only the highest quality engine available.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eSpecs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e427 Cubic Inch\u003c\/li\u003e\n\u003cli\u003eFactory Mast GM Gen V Re-Sleeve Block\u003c\/li\u003e\n\u003cli\u003eFactory Mast LST Conversion Large Valve Heads (CNC Ported)\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePerformance Camshaft with Dual Spring \u0026amp; Titanium Retainers\u003c\/li\u003e\n\u003cli\u003eFactory Mast LT2 LST Conversion Intake - Port Injection Optional\u003c\/li\u003e\n\u003cli\u003eDry Sump System- LT4 Factory Style\u003c\/li\u003e\n\u003cli\u003eSupplied with Ignition Coils\u003c\/li\u003e\n\u003cli\u003eHP Rated at 660+ HP\u003c\/li\u003e\n\u003cli\u003eFactory Mast L8T Based Front Accessory Drive\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eOptions-\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdd Air Conditioning Accessory Drive \u0026amp; Sanden Pump\u003c\/li\u003e\n\u003cli\u003eHolley Terminator ECM with Wiring Harness - Port Fuel Injection\u003c\/li\u003e\n\u003cli\u003eHolley Dominator ECM with Wirting Harness - Direct Injection or Port Injection\u003c\/li\u003e\n\u003cli\u003eHaltech ECM with Wiring Harness (Only Port Fuel Injection)\u003c\/li\u003e\n\u003cli\u003eValve Covers of your choice\u003c\/li\u003e\n\u003cli\u003eDirect Injection or Port Fuel Injection\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTurn Key with Sensors, Starter, Flywheel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStreet Car\u003c\/li\u003e\n\u003cli\u003eRoad Racing \u0026amp; Performance\u003c\/li\u003e\n\u003cli\u003eOff Road\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e* We recommend final tune be done in your vehicle for ultimate drive-ability.  \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Mast Motorsports","offers":[{"title":"Turn Key Engine","offer_id":39876444225735,"sku":"EN-LST-302428","price":26999.0,"currency_code":"USD","in_stock":true},{"title":"Turn Key with A\/C Pump","offer_id":39876444258503,"sku":"EN-LST-302428AC","price":27850.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/factory-mast-crate-engines-427ci-factory-mast-lst-genv-crate-engine-660hp-autocross-spec-dry-sump-30528900563143.png?v=1631759269"},{"product_id":"copy-of-front-accessory-drive-kit-gm-gen-v-lt-based-engines","title":"Air Conditioning System -Front Accessory Drive Kit - GM Gen V LT Based Engines","description":"\u003cp\u003eAir Conditioning add on kit for LT Mast Front Accessory Drive System.\u003c\/p\u003e\n\u003cp\u003eMast Motorsports combines key OE Features, Premium Sanden Pump, and Mast Produced components to make a compact front accessory drive for the LT engine.\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAvailable for all LT engines\u003c\/li\u003e\n\u003cli\u003eAvailable for Dry Sump and Factory Wet Sump Applications\u003c\/li\u003e\n\u003cli\u003eA\/C System uses separate belt line and belt\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eComplete kit includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSanden SD-709 Rear Exit A\/C compressor\u003c\/li\u003e\n\u003cli\u003eMounting Bracket\u003c\/li\u003e\n\u003cli\u003eHardware \u0026amp; Required Bolts\u003c\/li\u003e\n\u003cli\u003eBelt\u003c\/li\u003e\n\u003cli\u003eAll Associated Bolts and Spacers\u003c\/li\u003e\n\u003cli\u003eDOES NOT include hoses or hardware for A\/C system\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":40667796242631,"sku":"CA-LTX-302437","price":750.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/mast-motorsports-front-accessory-drive-air-conditioning-system-front-accessory-drive-kit-gm-gen-v-lt-based-engines-30708530675911.png?v=1629167456"},{"product_id":"ls3-black-label-head-295","title":"LS3 295cc 4.125\" (+) Bore - Pair Black Label CNC Cylinder Heads","description":"\u003ch4\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e---\u0026gt;\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/LS3_Large_Bore_Spec_Sheet_v2.pdf?v=1645196874\" target=\"_blank\"\u003eDownload the cylinder head spec sheet\u003c\/a\u003e\u0026lt;----\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003eThe Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. \u003c\/p\u003e\n\u003cp\u003eMast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality.  When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. \u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eFull Send, no compromises, no shortcuts, ever.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eDimensional Specs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eBore Size: \u003c\/strong\u003e\u003cem\u003e4.125\" (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cem\u003e 27.5 lbs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Size:\u003c\/strong\u003e \u003cem\u003e2.250\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Size:\u003c\/strong\u003e \u003cem\u003e1.600\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Stem Diameter:\u003c\/strong\u003e \u003cem\u003e5\/16\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Length:\u003c\/strong\u003e \u003cem\u003e5.450\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Angle:\u003c\/strong\u003e \u003cem\u003e12\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Pocket Diameter:\u003c\/strong\u003e \u003cem\u003e1.65\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Install Height:\u003c\/strong\u003e \u003cem\u003e1.800\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Stud Size:\u003c\/strong\u003e \u003cem\u003e.493\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Guide OD:\u003c\/strong\u003e \u003cem\u003e.502\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eValve Job Type:\u003c\/strong\u003e \u003cem\u003eNewen CNC 5 Angle\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eAir Flow \u0026amp; Performance Criteria\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Max. Flow: \u003c\/strong\u003e\u003cem\u003e397 CFM @ 0.700\"\u003c\/em\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Max. Flow: \u003c\/strong\u003e\u003cem\u003e248 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Average Flow:\u003c\/strong\u003e \u003cem\u003e254 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Average Flow: \u003c\/strong\u003e\u003cem\u003e176 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Seat Material:\u003c\/strong\u003e \u003cem\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Port Volume:\u003c\/strong\u003e \u003cem\u003e295cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Port Volume:\u003c\/strong\u003e \u003cem\u003e106cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eStandard Chamber Volume: \u003c\/strong\u003e\u003cem\u003e70cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cem\u003e\u003c\/em\u003e\u003cstrong\u003ePort Type:\u003c\/strong\u003e \u003cem\u003eCNC\u003c\/em\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eMaterials\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCylinder Head Material:\u003c\/strong\u003e \u003cem\u003eA356-T6 Aluminum\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Seat Material:\u003c\/strong\u003e \u003cem\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Seat Material:\u003c\/strong\u003e \u003cem\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eDeck Thickness:\u003c\/strong\u003e \u003cem\u003e.750\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eMast Billet\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type:\u003c\/strong\u003e \u003cem\u003eOE LS7 1.8 or Aftermarket\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eGuide Material:\u003c\/strong\u003e \u003cem\u003ePhosphor Bronze\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eGeneral\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type:\u003c\/strong\u003e \u003cem\u003eMast Billet\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stands Included:\u003c\/strong\u003e \u003cem\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Dowels Included:\u003c\/strong\u003e \u003cem\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eUses Stock Rocker Bolts:\u003c\/strong\u003e \u003cem\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Bolts Included: \u003c\/strong\u003e\u003cem\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type: \u003c\/strong\u003e\u003cem\u003eOE LS7 1.8 or Aftermarket\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Bolt QTY:\u003c\/strong\u003e \u003cem\u003e6 Bolt Style\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Cover Rail Height:\u003c\/strong\u003e \u003cem\u003e+ ½ inch\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCan use OE Valve Cover:\u003c\/strong\u003e \u003cem\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cu\u003eCustom Options Available\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eChamber Softening\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eCustom Chamber Sizing\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e½ inch head stud clearance\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eCopper Exhaust \u0026amp; Intake Valve Seats\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003e\u003cbr\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":42368535593173,"sku":"CH-LSX-600211","price":4049.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/black-label-cylinder-heads-ls3-295cc-4-125-bore-pair-black-label-cnc-cylinder-heads-stainless-steel-or-titanium-valves-39987549864149.png?v=1682634656"},{"product_id":"ls3-black-label-head-295-jesel","title":"LS3 295cc 4.125\" (+) Bore - Pair Black Label CNC Cylinder Heads - Jesel Pattern","description":"\u003ch4\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e---\u0026gt;\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/LS3_Large_Bore_Spec_Sheet.pdf?v=1699647704\"\u003eDownload the cylinder head spec sheet\u003c\/a\u003e\u0026lt;----\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eMast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality.  When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. \u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFull Send, no compromises, no shortcuts, ever.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eDimensional Specs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eBore Size: \u003c\/strong\u003e\u003cem\u003e4.125\" (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e 27.5\u003c\/span\u003e lbs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e2.250\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.600\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Stem Diameter: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e5\/16\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Length: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e5.450\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Angle: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e12\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Pocket Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.65\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Install Height:\u003c\/strong\u003e \u003cem\u003e1.800\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Stud Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.493\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Guide OD:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.502\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Job Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eNewen CNC 5 Angle\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eAir Flow \u0026amp; Performance Criteria\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Max. Flow: \u003c\/strong\u003e\u003cem\u003e397 CFM @ 0.700\"\u003c\/em\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Max. Flow: \u003c\/strong\u003e\u003cem\u003e248 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Average Flow:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e254 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Average Flow: \u003c\/strong\u003e\u003cem\u003e176 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Port Volume: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e295cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Port Volume: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e106cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eStandard Chamber Volume: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e70cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003cstrong\u003ePort Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eCNC\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eMaterials\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCylinder Head Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eA356-T6 Aluminum\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eDeck Thickness: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.750\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eJesel\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eJesel\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eGuide Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ePhosphor Bronze\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eGeneral\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003ci\u003eJesel\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stands Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci\u003eNo\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Dowels Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci\u003eNo\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eUses Stock Rocker Bolts: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Bolts Included: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type:\u003c\/strong\u003e \u003ci\u003eJesel\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Bolt QTY:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e6 Bolt Style\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Cover Rail Height:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e+ ½ inch\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCan use OE Valve Cover:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eCustom Options Available\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eChamber Softening\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCustom Chamber Sizing\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e½ inch head stud clearance\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCopper Exhaust \u0026amp; Intake Valve Seats\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":42368665583829,"sku":"CH-LSX-600212","price":4049.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/black-label-cylinder-heads-ls3-295cc-4-125-bore-pair-black-label-cnc-cylinder-heads-stainless-steel-or-titanium-valves-jesel-pattern-39987550847189.png?v=1682634655"},{"product_id":"products-ls3-295cc-4-125-bore-pair-black-label-cnc-cylinder-heads-valves-stainless-steel-or-titanium-jesel-pattern","title":"LS3 295cc 4.125\" (+) Bore - Pair Black Label CNC Cylinder Heads - Jesel Pattern - Solid Roller","description":"\u003ch4\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e---\u0026gt;\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/LS3_Large_Bore_Spec_Sheet_v2.pdf?v=1645196874\" target=\"_blank\"\u003eDownload the cylinder head spec sheet\u003c\/a\u003e\u0026lt;----\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eMast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality.  When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. \u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFull Send, no compromises, no shortcuts, ever.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eDimensional Specs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eBore Size: \u003c\/strong\u003e\u003cem\u003e4.125\" (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong\u003e \u003c\/strong\u003e27.5\u003c\/span\u003e lbs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e2.250\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e1.600\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Stem Diameter: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e5\/16\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Length:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e5.550\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Angle:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e12\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Pocket Diameter: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e1.65\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Install Height:\u003c\/strong\u003e \u003cem\u003e1.900\" (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Stud Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.493\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Guide OD: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.502\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Job Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eNewen CNC 5 Angle\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eAir Flow \u0026amp; Performance Criteria\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Max. Flow: \u003c\/strong\u003e\u003cem\u003e397 CFM @ 0.700\"\u003c\/em\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Max. Flow: \u003c\/strong\u003e\u003cem\u003e248 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Average Flow:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cem\u003e254 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Average Flow: \u003c\/strong\u003e\u003cem\u003e176 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Port Volume:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e295cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Port Volume:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e106cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eStandard Chamber Volume:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e70cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003cstrong\u003ePort Type:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eCNC\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eMaterials\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCylinder Head Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eA356-T6 Aluminum\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eDeck Thickness:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.750\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eJesel\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eJesel\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eGuide Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003ePhosphor Bronze\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eGeneral\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003ci data-mce-fragment=\"1\"\u003eJesel\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stands Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci\u003eNo\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Dowels Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci\u003eNo\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eUses Stock Rocker Bolts:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Bolts Included:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003ci data-mce-fragment=\"1\"\u003eJesel\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Bolt QTY:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e6 Bolt Style\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Cover Rail Height:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e+ ½ inch\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCan use OE Valve Cover:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eCustom Options Available\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eChamber Softening\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCustom Chamber Sizing\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e½ inch head stud clearance\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCopper Exhaust \u0026amp; Intake Valve Seats\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Black Label","offers":[{"title":"Default Title","offer_id":42368684556501,"sku":"CH-LSX-600214","price":4049.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/black-label-cylinder-heads-ls3-295cc-4-125-bore-pair-black-label-cnc-cylinder-heads-stainless-steel-or-titanium-valves-jesel-pattern-solid-roller-39987554058453.png?v=1682634307"},{"product_id":"cathedral-black-label-head-5-3","title":"Cathedral Port 5.3L 3.780\" (+) Bore - Pair Black Label CNC Cylinder Head","description":"\u003ch4 data-mce-fragment=\"1\"\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e----\u0026gt;\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/5.3_Cathedral_Spec_Sheet_v2.pdf?v=1645195797\" target=\"_blank\"\u003e\u003cu data-mce-fragment=\"1\"\u003e\u003c\/u\u003eDownload the cylinder head spec sheet\u003c\/a\u003e\u0026lt;----\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eMast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality.  When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. \u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFull Send, no compromises, no shortcuts, ever.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eDimensional Specs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eBore Size: \u003c\/strong\u003e\u003cem\u003e3.780\" (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e 29\u003c\/span\u003e lbs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e2.040\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.570\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Stem Diameter: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e5\/16\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Length: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e5.450\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Angle:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e11\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Pocket Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.65\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Install Height:\u003c\/strong\u003e \u003cem\u003e1.800\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Stud Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.493\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Guide OD:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.502\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Job Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNewen CNC 5 Angle\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eAir Flow \u0026amp; Performance Criteria\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Max. Flow: \u003c\/strong\u003e\u003cem\u003e330 CFM @ 7.000\"\u003c\/em\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Max. Flow: \u003c\/strong\u003e\u003cem\u003e240 CFM @ 7.000\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Average Flow: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e218 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Average Flow:\u003c\/strong\u003e \u003ci\u003e171 CFM\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Port Volume:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e252cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Port Volume:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e 99\u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ecc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eStandard Chamber Volume:\u003c\/strong\u003e \u003cem\u003e62cc \u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003cstrong\u003ePort Type:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eCNC\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eMaterials\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCylinder Head Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eA356-T6 Aluminum\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eDeck Thickness:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.750\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eMast Billet\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type: \u003c\/strong\u003e\u003cem\u003eLS3 1.7\u003c\/em\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eor Aftermarket\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eGuide Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003ePhosphor Bronze\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eGeneral\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eMast Billet\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stands Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Dowels Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eUses Stock Rocker Bolts:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Bolts Included:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type:\u003c\/strong\u003e \u003cem\u003eLS7 1.7 or Aftermarket\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Bolt QTY:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e6 Bolt Style\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Cover Rail Height:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e+ ½ inch\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCan use OE Valve Cover:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eCustom Options Available\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eChamber Softening\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCustom Chamber Sizing\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e½ inch head stud clearance\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCopper Exhaust \u0026amp; Intake Valve Seats\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":42406457344213,"sku":"CH-LSX-600203","price":4049.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/black-label-cylinder-heads-cathedral-port-5-3l-3-780-bore-pair-black-label-cnc-cylinder-head-stainless-or-titanium-valves-39987517915349.png?v=1682627978"},{"product_id":"cathedral-black-label-head-245","title":"Cathedral Port 245cc 4.000\"(+) Bore - Pair Black Label CNC Cylinder Head","description":"\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong style=\"background-color: #ffff00;\"\u003e----\u0026gt;\u003cu data-mce-fragment=\"1\"\u003e\u003c\/u\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/Cathedral_Medium_Bore_Spec_Sheet.pdf?v=1699647704\"\u003eDownload the cylinder head spec sheet\u003c\/a\u003e\u0026lt;----\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. \u003cbr\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eMast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality.  When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. \u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFull Send, no compromises, no shortcuts, ever.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eDimensional Specs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eBore Size: \u003c\/strong\u003e\u003cem\u003e4.000\" (+)\u003c\/em\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan style=\"color: #000000;\"\u003e\u003cstrong\u003e\u003cspan style=\"background-color: #ffffff;\"\u003eWeight:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cspan style=\"background-color: #ffffff; color: #000000;\"\u003e \u003c\/span\u003e28.5\u003c\/span\u003e lbs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003e\u003cspan style=\"color: #000000; background-color: #ffffff;\"\u003eIntake Valve Size:\u003c\/span\u003e \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e2.165\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.600\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Stem Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e5\/16\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Length:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e5.450\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Angle:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e11\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Pocket Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.65\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Install Height:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e 1.800\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Stud Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.493\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Guide OD:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.502\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Job Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNewen CNC 5 Angle\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eAir Flow \u0026amp; Performance Criteria\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Max. Flow: \u003c\/strong\u003e\u003cem\u003e358 CFM @ 0.700\"\u003c\/em\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Max. Flow: \u003c\/strong\u003e\u003cem\u003e245 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Average Flow: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e248 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Average Flow:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e171 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Port Volume: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e245cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Port Volume:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e106cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eStandard Chamber Volume:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e70cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003cstrong\u003ePort Type:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eCNC\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eMaterials\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCylinder Head Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eA356-T6 Aluminum\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eDeck Thickness: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.750\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eMast Billet\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003cem\u003eLS3 1.7\u003c\/em\u003e\u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e or Aftermarket\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eGuide Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ePhosphor Bronze\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eGeneral\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eMast Billet\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stands Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Dowels Included: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eUses Stock Rocker Bolts:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Bolts Included:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type: \u003c\/strong\u003e\u003cem\u003eLS3 1.7\u003c\/em\u003e\u003cem data-mce-fragment=\"1\"\u003e or Aftermarket\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Bolt QTY: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e6 Bolt Style\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Cover Rail Height:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e+ ½ inch\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCan use OE Valve Cover: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eCustom Options Available\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eChamber Softening\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCustom Chamber Sizing\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e½ inch head stud clearance\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCopper Exhaust \u0026amp; Intake Valve Seats\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":42406457409749,"sku":"CH-LSX-600204","price":4049.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/black-label-cylinder-heads-cathedral-port-245cc-4-000-bore-pair-black-label-cnc-cylinder-head-stainless-steel-or-titanium-valves-39987524272341.png?v=1682628160"},{"product_id":"cathedral-black-label-head-295","title":"Cathedral Port 295cc 4.125\" (+) Bore - Pair Black Label CNC Cylinder Head","description":"\u003ch4 data-mce-fragment=\"1\"\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e----\u0026gt;\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/Cathedral_Large_Bore_Spec_Sheet_v2.pdf?v=1645195981\" target=\"_blank\" data-mce-href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/Cathedral_Large_Bore_Spec_Sheet_v2.pdf?v=1645195981\"\u003e\u003cu data-mce-fragment=\"1\"\u003e\u003c\/u\u003eDownload the cylinder head spec sheet\u003c\/a\u003e\u0026lt;----\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eMast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality.  When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. \u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFull Send, no compromises, no shortcuts, ever.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eDimensional Specs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eBore Size: \u003c\/strong\u003e\u003cem\u003e4.125\" (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e 27.5\u003c\/span\u003e lbs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e2.250\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.600\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Stem Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e5\/16\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Length: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e5.450\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Angle:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e12\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Pocket Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.65\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Install Height:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e 1.800\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Stud Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.493\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Guide OD:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.502\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Job Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eNewen CNC 5 Angle\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eAir Flow \u0026amp; Performance Criteria\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Max. Flow: \u003c\/strong\u003e\u003cem\u003e405 CFM @ 0.700\"\u003c\/em\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Max. Flow: \u003c\/strong\u003e\u003cem\u003e248 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Average Flow: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e264 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Average Flow: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e176 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Port Volume: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e295cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Port Volume: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e106cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eStandard Chamber Volume:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e70cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003cstrong\u003ePort Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eCNC\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eMaterials\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCylinder Head Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eA356-T6 Aluminum\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eDeck Thickness:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.750\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eMast Billet\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eOE LS7 1.8 or Aftermarket\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eGuide Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ePhosphor Bronze\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eGeneral\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eMast Billet\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stands Included: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Dowels Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eUses Stock Rocker Bolts:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Bolts Included:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eOE LS7 1.8 or Aftermarket\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Bolt QTY:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e6 Bolt Style\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Cover Rail Height:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e+ ½ inch\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCan use OE Valve Cover:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eCustom Options Available\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eChamber Softening\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCustom Chamber Sizing\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e½ inch head stud clearance\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCopper Exhaust \u0026amp; Intake Valve Seats\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":42406457508053,"sku":"CH-LSX-600205","price":4049.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/black-label-cylinder-heads-cathedral-port-295cc-4-125-bore-pair-black-label-cnc-cylinder-head-stainless-steel-or-titanium-valves-39987528958165.png?v=1682628342"},{"product_id":"cathedral-black-label-head-295-jesel","title":"Cathedral Port 295cc 4.125\" (+) Bore - Pair Black Label CNC Cylinder Head - Jesel Pattern","description":"\u003ch4 data-mce-fragment=\"1\"\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e----\u0026gt;\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/Cathedral_Large_Bore_Spec_Sheet_v2.pdf?v=1645195981\" target=\"_blank\" data-mce-href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/Cathedral_Large_Bore_Spec_Sheet_v2.pdf?v=1645195981\"\u003e\u003cu data-mce-fragment=\"1\"\u003e\u003c\/u\u003eDownload the cylinder head spec sheet\u003c\/a\u003e\u0026lt;----\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eMast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality.  When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. \u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFull Send, no compromises, no shortcuts, ever.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eDimensional Specs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eBore Size: \u003c\/strong\u003e\u003cem\u003e4.125\" (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong\u003e \u003c\/strong\u003e27.5\u003c\/span\u003e lbs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e2.250\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e1.600\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Stem Diameter: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e5\/16\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Length:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e5.450\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Angle: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e12\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Pocket Diameter: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e1.65\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Install Height:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan\u003e \u003c\/span\u003e1.800\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Stud Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.493\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Guide OD:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.502\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Job Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNewen CNC 5 Angle\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eAir Flow \u0026amp; Performance Criteria\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Max. Flow: \u003c\/strong\u003e\u003cem\u003e405 CFM @ 0.700\"\u003c\/em\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Max. Flow: \u003c\/strong\u003e\u003cem\u003e248 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Average Flow: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e264 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Average Flow: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e176 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Port Volume: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e295cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Port Volume: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e106cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eStandard Chamber Volume:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e70cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003cstrong\u003ePort Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eCNC\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eMaterials\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCylinder Head Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eA356-T6 Aluminum\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eDeck Thickness: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.750\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type:\u003c\/strong\u003e \u003ci\u003eJesel\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci\u003eJesel Rocker Arms\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eGuide Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ePhosphor Bronze\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eGeneral\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci\u003eJesel\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stands Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci\u003eNo\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Dowels Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci\u003eNo\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eUses Stock Rocker Bolts:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Bolts Included:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type:\u003c\/strong\u003e \u003ci\u003eJesel Rocker Arms\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Bolt QTY:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e6 Bolt Style\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Cover Rail Height:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e+ ½ inch\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCan use OE Valve Cover:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eCustom Options Available\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eChamber Softening\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCustom Chamber Sizing\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e½ inch head stud clearance\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCopper Exhaust \u0026amp; Intake Valve Seats\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":42406457704661,"sku":"CH-LSX-600206","price":4049.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/black-label-cylinder-heads-cathedral-port-295cc-4-125-bore-pair-black-label-cnc-cylinder-head-stainless-steel-or-titanium-valves-jesel-pattern-39987531710677.png?v=1682628517"},{"product_id":"cathedral-black-label-head-295-sr-jesel","title":"Cathedral Port 295cc 4.125\" (+) Bore - Pair Black Label CNC Cylinder Head - Jesel Pattern - Solid Roller","description":"\u003ch4 data-mce-fragment=\"1\"\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e----\u0026gt;\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/Cathedral_Large_Bore_Spec_Sheet_v2.pdf?v=1645195981\" target=\"_blank\" data-mce-href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/Cathedral_Large_Bore_Spec_Sheet_v2.pdf?v=1645195981\"\u003e\u003cu data-mce-fragment=\"1\"\u003e\u003c\/u\u003eDownload the cylinder head spec sheet\u003c\/a\u003e\u0026lt;----\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eMast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality.  When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. \u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFull Send, no compromises, no shortcuts, ever.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/Cathedral_Large_Bore_Spec_Sheet_v2.pdf?v=1645195981\" target=\"_blank\"\u003e\u003cu data-mce-fragment=\"1\"\u003e\u003c\/u\u003e\u003c\/a\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eDimensional Specs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eBore Size: \u003c\/strong\u003e\u003cem\u003e4.125\" (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong\u003e \u003c\/strong\u003e27.5\u003c\/span\u003e lbs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e2.250\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e1.600\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Stem Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e5\/16\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Length:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e5.550\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Angle: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e12\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Pocket Diameter: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e1.65\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Install Height:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan\u003e \u003c\/span\u003e1.900\" (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Stud Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.493\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Guide OD:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.502\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Job Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eNewen CNC 5 Angle\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eAir Flow \u0026amp; Performance Criteria\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Max. Flow: \u003c\/strong\u003e\u003cem\u003e405 CFM @ 0.700\"\u003c\/em\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Max. Flow: \u003c\/strong\u003e\u003cem\u003e248 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Average Flow: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e264 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Average Flow: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e176 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Port Volume:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e295cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Port Volume: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e106cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eStandard Chamber Volume:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e70cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003cstrong\u003ePort Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eCNC\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eMaterials\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCylinder Head Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eA356-T6 Aluminum\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eDeck Thickness:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.750\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type:\u003c\/strong\u003e \u003ci\u003eJesel\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003ci\u003eJesel Rocker Arms\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eGuide Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003ePhosphor Bronze\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eGeneral\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci\u003eJesel\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stands Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci\u003eNo\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Dowels Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci\u003eNo\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eUses Stock Rocker Bolts: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Bolts Included:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type:\u003c\/strong\u003e \u003ci\u003eJesel Rocker Arms\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Bolt QTY: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e6 Bolt Style\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Cover Rail Height:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e+ ½ inch\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCan use OE Valve Cover: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eCustom Options Available\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eChamber Softening\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCustom Chamber Sizing\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e½ inch head stud clearance\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCopper Exhaust \u0026amp; Intake Valve Seats\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":42406457770197,"sku":"CH-LSX-600208","price":4049.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/black-label-cylinder-heads-cathedral-port-295cc-4-125-bore-pair-black-label-cnc-cylinder-head-stainless-steel-or-titanium-valves-jesel-pattern-solid-roller-39987537871061.png?v=1682633910"},{"product_id":"ls3-black-label-head-240","title":"LS3 240cc 3.890\" (+) Bore - Pair Black Label CNC Cylinder Head","description":"\u003ch4 data-mce-fragment=\"1\"\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e----\u0026gt;\u003cu data-mce-fragment=\"1\"\u003e\u003c\/u\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/LS3_Small_Bore_Spec_Sheet.pdf?v=1699647705\"\u003eDownload the cylinder head spec sheet\u003c\/a\u003e\u0026lt;----\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eMast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality.  When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. \u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFull Send, no compromises, no shortcuts, ever.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eDimensional Specs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eBore Size: \u003c\/strong\u003e\u003cem\u003e3.890\" (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong\u003e \u003c\/strong\u003e28.5\u003c\/span\u003e lbs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e2.080\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e1.570\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Stem Diameter: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e5\/16\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Length:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e5.450\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Angle:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e11\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Pocket Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.65\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Install Height:\u003c\/strong\u003e \u003cem\u003e1.800\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Stud Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.493\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Guide OD:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.502\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Job Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNewen CNC 5 Angle\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eAir Flow \u0026amp; Performance Criteria\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Max. Flow: \u003c\/strong\u003e\u003cem\u003e347 CFM @ 0.700\"\u003c\/em\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Max. Flow: \u003c\/strong\u003e\u003cem\u003e239 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Average Flow: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e234 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Average Flow: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e168 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Port Volume:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e240cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Port Volume:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e 99\u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ecc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eStandard Chamber Volume:\u003c\/strong\u003e 61\u003cem data-mce-fragment=\"1\"\u003ecc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003cstrong\u003ePort Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eCNC\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eMaterials\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCylinder Head Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eA356-T6 Aluminum\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eDeck thickness: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.750\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eMast Billet\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eOE LS3 1.7 or Aftermarket\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eGuide Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ePhosphor Bronze\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eGeneral\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eMast Billet\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stands Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Dowels Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eUses Stock Rocker Bolts: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Bolts Included: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eOE LS7 1.8 or Aftermarket\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Bolt QTY:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e6 Bolt Style\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Cover Rail Height:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e+ ½ inch\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCan use OE Valve Cover:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eCustom Options Available\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eChamber Softening\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCustom Chamber Sizing\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e½ inch head stud clearance\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCopper Exhaust \u0026amp; Intake Valve Seats\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":42406457999573,"sku":"CH-LSX-600209","price":4049.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/black-label-cylinder-heads-ls3-240cc-3-890-bore-pair-black-label-cnc-cylinder-head-stainless-steel-or-titanium-valves-39987542065365.png?v=1682634640"},{"product_id":"ls3-black-label-head-255","title":"LS3 255cc 4.000\" (+) Bore - Pair Black Label CNC Cylinder Head","description":"\u003ch4 data-mce-fragment=\"1\"\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e----\u0026gt;\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/LS3_Medium_Bore_Spec_Sheet_v2.pdf?v=1645196859\" target=\"_blank\"\u003e\u003cu data-mce-fragment=\"1\"\u003e\u003c\/u\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/LS3_Medium_Bore_Spec_Sheet.pdf?v=1699647704\"\u003eDownload the cylinder head spec sheet\u003c\/a\u003e\u0026lt;----\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eMast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality. When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. \u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFull Send, no compromises, no shortcuts, ever.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eDimensional Specs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eBore Size: \u003c\/strong\u003e\u003cem\u003e4.000\" (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong\u003e \u003c\/strong\u003e28\u003c\/span\u003e lbs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e2.165\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.600\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Stem Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e5\/16\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Length: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e5.450\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Angle: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e11\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Pocket Diameter: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e1.65\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Install Height:\u003c\/strong\u003e \u003cem\u003e1.800\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Stud Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.493\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Guide OD:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.502\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Job Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eNewen CNC 5 Angle\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eAir Flow \u0026amp; Performance Criteria\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Max. Flow: \u003c\/strong\u003e\u003cem\u003e370 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Max. Flow:\u003c\/strong\u003e\u003cem\u003e \u003c\/em\u003e\u003cem\u003e243\u003c\/em\u003e \u003cem\u003eCFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Average Flow:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e243 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Average Flow:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e170 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Port Volume:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e255cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Port Volume:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e106cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eStandard Chamber Volume:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e70cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003cstrong\u003ePort Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eCNC\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eMaterials\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCylinder Head Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eA356-T6 Aluminum\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eDeck thickness:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.750\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eMast Billet\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type: \u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003cem\u003eLS3 1.7\u003c\/em\u003e\u003cem data-mce-fragment=\"1\"\u003e or Aftermarket\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eGuide Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ePhosphor Bronze\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eGeneral\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eMast Billet\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stands Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Dowels Included: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eUses Stock Rocker Bolts:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Bolts Included:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type:\u003c\/strong\u003e \u003cem\u003eLS3 1.7\u003c\/em\u003e\u003cem data-mce-fragment=\"1\"\u003e or Aftermarket\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Bolt QTY:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e6 Bolt Style\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Cover Rail Height:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e+ ½ inch\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCan use OE Valve Cover: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eCustom Options Available\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eChamber Softening\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCustom Chamber Sizing\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e½ inch head stud clearance\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCopper Exhaust \u0026amp; Intake Valve Seats\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":42406458097877,"sku":"CH-LSX-600210","price":4049.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/black-label-cylinder-heads-ls3-255cc-4-000-bore-pair-black-label-cnc-cylinder-head-stainless-steel-or-titanium-valves-39987545243861.png?v=1682634646"},{"product_id":"ls7-black-label-head-265","title":"LS7 265cc 4.000\" (+) Bore - Pair Black Label CNC Cylinder Head","description":"\u003ch4 data-mce-fragment=\"1\"\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e----\u0026gt;\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/LS7_Medium_Bore_Spec_Sheet_v2.pdf?v=1645197732\" target=\"_blank\"\u003e\u003cu data-mce-fragment=\"1\"\u003e\u003c\/u\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/LS7_Medium_Bore_Spec_Sheet.pdf?v=1699647705\"\u003eDownload the cylinder head spec sheet\u003c\/a\u003e\u0026lt;----\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eMast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality.  When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. \u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFull Send, no compromises, no shortcuts, ever.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eDimensional Specs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eBore Size: \u003c\/strong\u003e\u003cem\u003e4.000\" (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e 28\u003c\/span\u003e lbs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e2.165\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e1.600\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Stem Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e5\/16\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Length:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e5.450\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Angle: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e11\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Pocket Diameter: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e1.65\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Install Height:\u003c\/strong\u003e \u003cem\u003e1.800\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Stud Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.493\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Guide OD: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.502\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Job Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eNewen CNC 5 Angle\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eAir Flow \u0026amp; Performance Criteria\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Max. Flow: \u003c\/strong\u003e\u003cem\u003e370 CFM @ 0.700\"\u003c\/em\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Max. Flow: \u003c\/strong\u003e\u003cem\u003e246 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Average Flow:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e245 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Average Flow:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e172 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Port Volume:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e265cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Port Volume: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e106cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eStandard Chamber Volume: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e70cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003cstrong\u003ePort Type:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eCNC\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eMaterials\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCylinder Head Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eA356-T6 Aluminum\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eDeck Thickness: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.750\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eMast Billet\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type: \u003c\/strong\u003e\u003cem\u003eLS3 1.7 or Aftermarket\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eGuide Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003ePhosphor Bronze\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eGeneral\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eMast Billet\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stands Included: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Dowels Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eUses Stock Rocker Bolts:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Bolts Included:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type: \u003c\/strong\u003e\u003cem\u003eLS3 1.7\u003c\/em\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eor Aftermarket\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Bolt QTY:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e6 Bolt Style\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Cover Rail Height:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e+ ½ inch\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCan use OE Valve Cover:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eCustom Options Available\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eChamber Softening\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCustom Chamber Sizing\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e½ inch head stud clearance\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCopper Exhaust \u0026amp; Intake Valve Seats\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":42406458425557,"sku":"CH-LSX-600215","price":3999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/black-label-cylinder-heads-ls7-265cc-4-000-bore-pair-black-label-cnc-cylinder-head-stainless-steel-or-titanium-valves-39987557040341.png?v=1682634288"},{"product_id":"ls7-black-label-head-305","title":"LS7 305cc 4.125\" (+) Bore - Pair Black Label CNC Cylinder Head","description":"\u003ch4 data-mce-fragment=\"1\"\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e----\u0026gt;\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/LS7_Large_Bore_305_Spec_Sheet_v2.pdf?v=1645197993\" target=\"_blank\"\u003eDownload the cylinder head spec sheet\u003c\/a\u003e\u0026lt;----\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eMast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality.  When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. \u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFull Send, no compromises, no shortcuts, ever.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eDimensional Specs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eBore Size: \u003c\/strong\u003e\u003cem\u003e4.125\" (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e 27.5\u003c\/span\u003e lbs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e2.250\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.600\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Stem Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e5\/16\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Length: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e5.450\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Angle: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e12\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Pocket Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.65\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Install Height:\u003c\/strong\u003e \u003cem\u003e1.800\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Stud Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.493\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Guide OD: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.502\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Job Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNewen CNC 5 Angle\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eAir Flow \u0026amp; Performance Criteria\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Max. Flow: \u003c\/strong\u003e\u003cem\u003e405 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Max. Flow: \u003c\/strong\u003e\u003cem\u003e254 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Average Flow:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e265 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Average Flow: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e177 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Port Volume:\u003c\/strong\u003e\u003cem\u003e 305cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Port Volume: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e106cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eStandard Chamber Volume:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e70cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003cstrong\u003ePort Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eCNC\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eMaterials\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCylinder Head Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eA356-T6 Aluminum\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Valve Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eDeck Thickness:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.750\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eMast Billet\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eOE LS7 1.8 or Aftermarket\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eGuide Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ePhosphor Bronze\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eGeneral\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eMast Billet\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stands Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Stand Dowels Included: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eUses Stock Rocker Bolts:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Bolts Included:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eRocker Arm Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eOE LS7 1.8 or Aftermarket\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eHead Bolt QTY:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e6 Bolt Style\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Cover Rail Height: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e+ ½ inch\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eCan use OE Valve Cover:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eCustom Options Available\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eChamber Softening\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCustom Chamber Sizing\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e½ inch head stud clearance\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCopper Exhaust \u0026amp; Intake Valve Seats\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":42406458851541,"sku":"CH-LSX-600220","price":4049.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/black-label-cylinder-heads-ls7-305cc-4-125-bore-pair-black-label-cnc-cylinder-head-stainless-steel-or-titanium-valves-39987571720405.png?v=1682633997"},{"product_id":"ls7-black-label-head-305-jesel","title":"LS7 305cc 4.125\" (+) Bore - Pair Black Label CNC Cylinder Head - Jesel Pattern","description":"\u003ch4 data-mce-fragment=\"1\"\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e----\u0026gt;\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/LS7_Large_Bore_305_Spec_Sheet_v2.pdf?v=1645197993\" target=\"_blank\"\u003eDownload the cylinder head spec sheet\u003c\/a\u003e\u0026lt;----\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eMast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality.  When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. \u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFull Send, no compromises, no shortcuts, ever.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eDimensional Specs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eBore Size: \u003c\/strong\u003e\u003cem\u003e4.125\" (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eWeight:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e 27.5\u003c\/span\u003e lbs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e2.250\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.600\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Stem Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e5\/16\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Length: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e5.450\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Angle: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e12\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Spring Pocket Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.65\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Install Height:\u003c\/strong\u003e \u003cem\u003e1.800\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eHead Stud Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.493\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Guide OD: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.502\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Job Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNewen CNC 5 Angle\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eAir Flow \u0026amp; Performance Criteria\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Max. Flow: \u003c\/strong\u003e\u003cem\u003e405 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Max. Flow: \u003c\/strong\u003e\u003cem\u003e254 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Average Flow:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e265 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Average Flow: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e177 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Port Volume:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e 305cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Port Volume: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e106cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eStandard Chamber Volume:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e70cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePort Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eCNC\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eMaterials\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCylinder Head Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eA356-T6 Aluminum\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Valve Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eDeck thickness:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.750\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Type: \u003c\/strong\u003e\u003cem\u003eJesel\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Arm Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci\u003eJesel Rocker Arms\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eGuide Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ePhosphor Bronze\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eGeneral\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci\u003eJesel\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stands Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci\u003eNo\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Dowels Included: \u003c\/strong\u003e\u003cem\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eUses Stock Rocker Bolts:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Bolts Included:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Arm Type: \u003c\/strong\u003e\u003ci\u003eJesel Rocker Arms\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eHead Bolt QTY:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e6 Bolt Style\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Cover Rail Height: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e+ ½ inch\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCan use OE Valve Cover:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eCustom Options Available\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eChamber Softening\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCustom Chamber Sizing\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e½ inch head stud clearance\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCopper Exhaust \u0026amp; Intake Valve Seats\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":42406459080917,"sku":"CH-LSX-600221","price":4049.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/black-label-cylinder-heads-ls7-305cc-4-125-bore-pair-black-label-cnc-cylinder-head-stainless-steel-or-titanium-valves-jesel-pattern-39989726707925.png?v=1682705743"},{"product_id":"ls7-black-label-head-305-sr-jesel","title":"LS7 305cc 4.125\" (+) Bore - Pair Black Label CNC Cylinder Head - Jesel Pattern - Solid Roller","description":"\u003ch4 data-mce-fragment=\"1\"\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e----\u0026gt;\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/LS7_Large_Bore_305_Spec_Sheet_v2.pdf?v=1645197993\" target=\"_blank\"\u003eDownload the cylinder head spec sheet\u003c\/a\u003e\u0026lt;----\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eMast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality.  When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. \u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFull Send, no compromises, no shortcuts, ever.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eDimensional Specs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eBore Size: \u003c\/strong\u003e\u003cem\u003e4.125\" (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eWeight:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e 27.5\u003c\/span\u003e lbs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e2.250\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.600\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Stem Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e5\/16\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Length: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e5.550\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Angle: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e12\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Spring Pocket Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.65\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Install Height:\u003c\/strong\u003e \u003cem\u003e1.900\" (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eHead Stud Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.493\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Guide OD: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.502\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Job Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNewen CNC 5 Angle\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eAir Flow \u0026amp; Performance Criteria\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Max. Flow: \u003c\/strong\u003e\u003cem\u003e405 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Max. Flow: \u003c\/strong\u003e\u003cem\u003e254 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Average Flow:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e265 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eExhaust Average Flow: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e177 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Port Volume:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e 305cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Port Volume: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e106cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eStandard Chamber Volume:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e70cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePort Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eCNC\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eMaterials\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCylinder Head Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eA356-T6 Aluminum\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Valve Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eDeck Thickness:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.750\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Type:\u003c\/strong\u003e \u003ci\u003eJesel\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Arm Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eJesel Rocker Arms\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eGuide Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ePhosphor Bronze\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eGeneral\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci\u003eJesel\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stands Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci\u003eNo\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Dowels Included: \u003c\/strong\u003e\u003cem\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eUses Stock Rocker Bolts:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Bolts Included:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Arm Type: \u003c\/strong\u003e\u003cem\u003eJesel Rocker Arms\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eHead Bolt QTY:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e6 Bolt Style\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Cover Rail Height: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e+ ½ inch\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCan use OE Valve Cover:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eCustom Options Available\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eChamber Softening\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCustom Chamber Sizing\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e½ inch head stud clearance\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCopper Exhaust \u0026amp; Intake Valve Seats\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":42406459146453,"sku":"CH-LSX-600223","price":4049.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/black-label-cylinder-heads-ls7-305cc-4-125-bore-pair-black-label-cnc-cylinder-head-stainless-steel-or-titanium-valves-jesel-pattern-solid-roller-39989729788117.png?v=1682705740"},{"product_id":"lt-black-label-head-medbore","title":"LT1 Pair Black Label Cylinder Heads - 4.065 (+) Bore - For Direct Injection or Port Injection - Stainless Steel or Titanium Valves","description":"\u003ch4 data-mce-fragment=\"1\"\u003e\u003cspan style=\"color: #000000; background-color: #ffff00;\"\u003e----\u0026gt;\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/LT1_Medium_Bore_Spec_Sheet_v2.pdf?v=1645198609\" style=\"color: #000000;\" target=\"_blank\"\u003e\u003cu data-mce-fragment=\"1\"\u003e\u003c\/u\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/LT1MediumBoreSpecSheet.pdf?v=1699647705\"\u003eDownload the cylinder head spec sheet\u003c\/a\u003e\u0026lt;----\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eMast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality.  When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. \u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFull Send, no compromises, no shortcuts, ever.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eDimensional Specs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eBore Size: \u003c\/strong\u003e\u003cem\u003e4.065\" (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eWeight:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e 30\u003c\/span\u003e lbs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e2.165\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.600\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Stem Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e5\/16\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Length: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e5.550\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Angle: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e12.5\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003ex2.5\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003eExhaust Valve Angle: \u003c\/strong\u003e\u003cem\u003e12\u003cspan data-mce-fragment=\"1\"\u003e°x2.5°\u003c\/span\u003e\u003c\/em\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Spring Pocket Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.400\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Install Height: \u003c\/strong\u003e\u003cem\u003e1.800\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eHead Stud Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.530\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Guide OD: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.570\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Job Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNewen CNC 5 Angle\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eAir Flow \u0026amp; Performance Criteria\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Max. Flow: \u003c\/strong\u003e\u003cem\u003e355 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Max. Flow: \u003c\/strong\u003e\u003cem\u003e224 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Average Flow:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e247 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Average Flow: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e163 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Port Volume:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e 292cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Port Volume: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e111cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eStandard Chamber Volume:\u003c\/strong\u003e 60\u003cem data-mce-fragment=\"1\"\u003ecc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePort Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eCNC\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eMaterials\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCylinder Head Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eA356-T6 Aluminum\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Valve Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eDeck Thickness:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.750\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Type: \u003c\/strong\u003e\u003cem\u003ePedestal\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Arm Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci\u003eLS7 Exhaust 1.8 Ratio\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eGuide Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ePhosphor Bronze\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eGeneral\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ePedestal\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stands Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci\u003eBuilt-In\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Dowels Included: \u003c\/strong\u003e\u003cem\u003eN\/A\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eUses Stock Rocker Bolts:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Bolts Included:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Arm Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eLS7 Exhaust 1.8 Ratio\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eHead Bolt QTY:\u003c\/strong\u003e \u003cem\u003e4 Bolt Style\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Cover Rail Height: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e+ ½ inch\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCan use OE Valve Cover:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eCustom Options Available\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eChamber Softening\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCustom Chamber Sizing\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e½ inch head stud clearance\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCopper Exhaust \u0026amp; Intake Valve Seats\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"For Direct Injection \/ Stainless Steel Valves","offer_id":42406459441365,"sku":"CH-LTX-600224","price":4190.0,"currency_code":"USD","in_stock":false},{"title":"For Port Injection \/ Stainless Steel Valves","offer_id":42406459474133,"sku":"CH-LTX-600225","price":4190.0,"currency_code":"USD","in_stock":false},{"title":"For Direct Injection \/ Titanium Intake \u0026 Stainless Steel Exhaust","offer_id":42406459506901,"sku":"CH-LTX-600251","price":6100.0,"currency_code":"USD","in_stock":false},{"title":"For Port Injection \/ Titanium Intake \u0026 Stainless Steel Exhaust","offer_id":42406459539669,"sku":"CH-LTX-600252","price":6100.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/black-label-cylinder-heads-lt1-pair-black-label-heads-4-065-bore-for-direct-injection-or-port-injection-stainless-steel-or-titanium-valves-39989732311253.png?v=1682705922"},{"product_id":"lt-black-label-head-largebore","title":"LT1 Pair Black Label Cylinder Heads - 4.125 (+) Bore - For Direct Injection or Port Injection - Stainless Steel or Titanium Valves","description":"\u003ch4 data-mce-fragment=\"1\"\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e----\u0026gt;\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/LT1_Large_Bore_Spec_Sheet.pdf?v=1699647705\"\u003eDownload the Cylinder Head Spec Sheet\u003c\/a\u003e\u0026lt;----\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eMast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality.  When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. \u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFull Send, no compromises, no shortcuts, ever.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eDimensional Specs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eBore Size: \u003c\/strong\u003e\u003cem\u003e4.125\" (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eWeight:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e 30\u003c\/span\u003e lbs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e2.250\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.600\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Stem Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e5\/16\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Length: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e5.550\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Angle: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e10\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003ex2.5\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003eExhaust Valve Angle: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e11\u003cspan data-mce-fragment=\"1\"\u003e°x2.5°\u003c\/span\u003e\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Spring Pocket Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.400\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003e\u003cem\u003e\u003c\/em\u003eValve Spring Install Height: \u003c\/strong\u003e\u003cem\u003e1.800\"\u003c\/em\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eHead Stud Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.530\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Guide OD: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.570\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Job Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNewen CNC 5 Angle\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eAir Flow \u0026amp; Performance Criteria\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Max. Flow: \u003c\/strong\u003e\u003cem\u003e391 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Max. Flow: \u003c\/strong\u003e\u003cem\u003e250 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Average Flow:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e272 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Average Flow: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e180 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Port Volume:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e 313cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Port Volume: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e122cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eStandard Chamber Volume:\u003c\/strong\u003e 70\u003cem data-mce-fragment=\"1\"\u003ecc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePort Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eCNC\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eMaterials\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCylinder Head Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eA356-T6 Aluminum\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Valve Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eDeck Thickness:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.750\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003ePedestal\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Arm Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci data-mce-fragment=\"1\"\u003eLS7 Exhaust 1.8 Ratio\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eGuide Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ePhosphor Bronze\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eGeneral\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ePedestal\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stands Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci data-mce-fragment=\"1\"\u003eBuilt-In\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Dowels Included: \u003c\/strong\u003e\u003ci\u003eN\/A\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eUses Stock Rocker Bolts:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Bolts Included:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Arm Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eLS7 Exhaust 1.8 Ratio\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eHead Bolt QTY:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e4 Bolt Style\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Cover Rail Height: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e+ ½ inch\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCan use OE Valve Cover:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eCustom Options Available\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eChamber Softening\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCustom Chamber Sizing\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e½ inch head stud clearance\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCopper Exhaust \u0026amp; Intake Valve Seats\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"For Direct Injection \/ Stainless Steel Valves","offer_id":42406459572437,"sku":"CH-LTX-600226","price":4190.0,"currency_code":"USD","in_stock":false},{"title":"For Port Injection \/ Stainless Steel Valves","offer_id":42406459605205,"sku":"CH-LTX-600227","price":4190.0,"currency_code":"USD","in_stock":false},{"title":"For Direct Injection \/ Titanium Intake \u0026 Stainless Steel Exhaust","offer_id":42406459637973,"sku":"CH-LTX-600253","price":6100.0,"currency_code":"USD","in_stock":false},{"title":"For Port Injection \/ Titanium Intake \u0026 Stainless Steel Exhaust","offer_id":42406459670741,"sku":"CH-LTX-600254","price":6100.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/black-label-cylinder-heads-lt1-pair-black-label-heads-4-125-bore-for-direct-injection-or-port-injection-stainless-steel-or-titanium-valves-39989733851349.png?v=1682706103"},{"product_id":"lt4-black-label-head-medbore","title":"LT4 Pair Black Label Head - 4.065 (+) Bore - For Direct Injection - Stainless Steel or Titanium Valves","description":"\u003ch4 data-mce-fragment=\"1\"\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e----\u0026gt;\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/LT4_Medium_Bore_Spec_Sheet_v2.pdf?v=1645198643\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/LT4_Medium_Bore_Spec_Sheet.pdf?v=1699647705\"\u003eDownload the cylinder head spec sheet\u003c\/a\u003e\u0026lt;----\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eMast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality.  When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. \u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFull Send, no compromises, no shortcuts, ever.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eDimensional Specs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eBore Size: \u003c\/strong\u003e\u003cem\u003e4.065\" (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eWeight:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e 30\u003c\/span\u003e lbs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e2.165\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.600\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Stem Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e5\/16\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Length: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e5.550\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Angle: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e12.5\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003ex2.5\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003eExhaust Valve Angle: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e12\u003cspan data-mce-fragment=\"1\"\u003e°x2.5°\u003c\/span\u003e\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Spring Pocket Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.400\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Install Height:\u003c\/strong\u003e \u003cem\u003e1.800\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eHead Stud Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.530\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Guide OD: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.570\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Job Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNewen CNC 5 Angle\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eAir Flow \u0026amp; Performance Criteria\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Max. Flow: \u003c\/strong\u003e\u003cem\u003e355 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Max. Flow: \u003cem\u003e\u003c\/em\u003e\u003c\/strong\u003e\u003cem\u003e224 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Average Flow:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e247 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Average Flow: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e163 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Port Volume:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e 292cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Port Volume: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e111cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eStandard Chamber Volume:\u003c\/strong\u003e 60\u003cem data-mce-fragment=\"1\"\u003ecc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePort Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eCNC\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eMaterials\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCylinder Head Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eA356-T6 Aluminum\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Valve Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eDeck Thickness:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.750\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003ePedestal\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Arm Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci data-mce-fragment=\"1\"\u003eLS7 Exhaust 1.8 Ratio\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eGuide Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ePhosphor Bronze\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eGeneral\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ePedestal\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stands Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci data-mce-fragment=\"1\"\u003eBuilt-In\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Dowels Included: \u003c\/strong\u003e\u003cem\u003eN\/A\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eUses Stock Rocker Bolts:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Bolts Included:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Arm Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eLS7 Exhaust 1.8 Ratio\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eHead Bolt QTY:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e4 Bolt Style\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Cover Rail Height: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e+ ½ inch\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCan use OE Valve Cover:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eCustom Options Available\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eChamber Softening\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCustom Chamber Sizing\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e½ inch head stud clearance\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCopper Exhaust \u0026amp; Intake Valve Seats\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Stainless Steel Valves","offer_id":42406459834581,"sku":"CH-LTX-600228","price":4190.0,"currency_code":"USD","in_stock":false},{"title":"Titanium Intake \u0026 Stainless Steel Exhaust","offer_id":42406459867349,"sku":"CH-LTX-600255","price":6100.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/black-label-cylinder-heads-lt4-pair-black-label-head-4-065-bore-for-direct-injection-stainless-steel-or-titanium-valves-39989735588053.png?v=1682706278"},{"product_id":"lt4-black-label-head-largebore","title":"LT4 Pair Black Label Head - 4.125 (+) Bore - For Direct Injection - Stainless Steel or Titanium Valves","description":"\u003ch4 data-mce-fragment=\"1\"\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e----\u0026gt;\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/LT4_Large_Bore_Spec_Sheet_v2.pdf?v=1645198629\" target=\"_blank\"\u003e\u003cu data-mce-fragment=\"1\"\u003e\u003c\/u\u003eDownload the Cylinder Head Spec Sheet\u003c\/a\u003e\u0026lt;----\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe Mast Motorsports cylinder head product line is completely manufactured from a raw casting to a finished cylinder head in the USA located in Nacogdoches Texas. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eMast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality.  When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. \u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFull Send, no compromises, no shortcuts, ever.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eDimensional Specs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eBore Size: \u003c\/strong\u003e\u003cem\u003e4.125\" (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eWeight:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e 30\u003c\/span\u003e lbs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e2.250\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.600\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Stem Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e5\/16\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Length: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e5.550\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Angle: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e10\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003ex2.5\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003eExhaust Valve Angle: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e11\u003cspan data-mce-fragment=\"1\"\u003e°x2.5°\u003c\/span\u003e\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Spring Pocket Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.400\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eValve Spring Install Height:\u003c\/strong\u003e \u003cem\u003e1.800\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eHead Stud Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.530\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Guide OD: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.570\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Job Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNewen CNC 5 Angle\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eAir Flow \u0026amp; Performance Criteria\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Max. Flow: \u003c\/strong\u003e\u003cem\u003e391 CFM @ 0.700\"\u003c\/em\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Max. Flow: \u003c\/strong\u003e\u003cem\u003e250 CFM @ 0.700\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Average Flow:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e272 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Average Flow: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e180 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Port Volume:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e 313cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Port Volume: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e122cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eStandard Chamber Volume:\u003c\/strong\u003e 70\u003cem data-mce-fragment=\"1\"\u003ecc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePort Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eCNC\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eMaterials\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCylinder Head Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eA356-T6 Aluminum\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Valve Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eDuctile Iron\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eDeck Thickness:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.750\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003ePedestal\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Arm Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci data-mce-fragment=\"1\"\u003eLS7 Exhaust 1.8 Ratio\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eGuide Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ePhosphor Bronze\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eGeneral\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ePedestal\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stands Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci data-mce-fragment=\"1\"\u003eBuilt-In\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Dowels Included: \u003c\/strong\u003e\u003ci\u003eN\/A\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eUses Stock Rocker Bolts:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Bolts Included:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Arm Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eLS7 Exhaust 1.8 Ratio\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eHead Bolt QTY:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e4 Bolt Style\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Cover Rail Height: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e+ ½ inch\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCan use OE Valve Cover:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eCustom Options Available\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eChamber Softening\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCustom Chamber Sizing\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e½ inch head stud clearance\u003c\/em\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003eCopper Exhaust \u0026amp; Intake Valve Seats\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Stainless Steel Valves","offer_id":42406459932885,"sku":"CH-LTX-600229","price":4190.0,"currency_code":"USD","in_stock":false},{"title":"Titanium Intake \u0026 Stainless Steel Exhaust","offer_id":42406459965653,"sku":"CH-LTX-600256","price":6100.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/black-label-cylinder-heads-lt4-pair-black-label-head-4-125-bore-for-direct-injection-stainless-steel-or-titanium-valves-39989736767701.png?v=1682706461"},{"product_id":"ls3-factory-mast-head-295","title":"LS3 Large Bore | Factory Mast | As Cast Port | Cylinder Head - Pair","description":"\u003ch2 data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cspan\u003e\u003cstrong\u003eLimited QTY. Available\u003c\/strong\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003ch5 data-mce-fragment=\"1\"\u003e\u003c\/h5\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e----\u0026gt;\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/LS3_As_Cast_Large_Bore_Spec_Sheet_-_Final.pdf?v=1699646045\"\u003eDownload Your Cylinder Head Spec Sheet Here\u003c\/a\u003e\u0026lt;----\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIntroducing the Factory Mast \"As Cast\" Port Cylinder Head.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eWe launched our Factory Mast product line to deliver an economical product line for our customers. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eWe completely engineered and manufactured our long standing best in class CNC port into an \"As Cast\" port.  This new process saves a significant amount of time and manufacturing cost, which is savings we pass down to you.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eYou have come to love the \"Black Label\" Cylinder heads, but now you can get the same quality at a lower price without \u003cstrong\u003eSACRIFICING\u003c\/strong\u003e performance.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eManufactured using permanent mold technology, this casting is simply an amazing surface finish and quality.  \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eMast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality.  When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. \u003cbr\u003e\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFull Send, no compromises, no shortcuts, ever.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eDimensional Specs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eBore Size:\u003c\/strong\u003e \u003cem\u003e4.125 (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWeight:\u003c\/strong\u003e\u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e 28 \u003c\/span\u003elbs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eIntake Valve Size:\u003c\/span\u003e \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e2.250\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.600\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Stem Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e5\/16\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Length:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e5.450\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Angle:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003cem\u003e12\u003c\/em\u003e\u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e° \u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Spring Pocket Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.580\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Spring Install Height:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e1.800\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eHead Stud Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.4375\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Guide OD: \u003c\/strong\u003e\u003cem\u003e.502\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Job Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eAs Cast\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eAir Flow \u0026amp; Performance Criteria\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Max. Flow: \u003c\/strong\u003e\u003cem\u003e372 CFM @ 1.000\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Max. Flow: \u003c\/strong\u003e\u003cem\u003e191 CFM @ 1.000\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Average Flow: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e287 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Average Flow:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e164 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Seat Material: \u003c\/strong\u003e\u003cem\u003eHigh Chrome Alloy Steel\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Port Volume: \u003c\/strong\u003e\u003cem\u003e294cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Port Volume:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e104cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eStandard Chamber Volume:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e71cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePort Type:\u003c\/strong\u003e \u003cem\u003eAs \u003c\/em\u003e\u003ci\u003eCast\u003c\/i\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eMaterials\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCylinder Head Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eA356-T6 Aluminum\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eHigh Chrome Alloy Steel\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003cem data-mce-fragment=\"1\"\u003eHigh Chrome Alloy Steel\u003c\/em\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eDeck Thickness: \u003c\/strong\u003e\u003cem\u003e.750\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eMast Billet\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Arm Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003cem data-mce-fragment=\"1\"\u003eOE LS7 1.8 or Aftermarket\u003c\/em\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eGuide Material:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e Bronze\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eGeneral\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eMast Billet\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stands Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Dowels Included: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eUses Stock Rocker Bolts:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Bolts Included:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Arm Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eOE LS7 1.8 or Aftermarket\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eHead Bolt QTY: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e6 Bolt Style\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Cover Rail Height:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e+ ½ inch\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCan use OE Valve Cover: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eCustom Options Available\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003ci data-mce-fragment=\"1\"\u003eHead Assembly\u003c\/i\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003ci\u003eCustom Chamber Size\u003c\/i\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003ci\u003eChamber Softening\u003c\/i\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003ci\u003e1\/2\" Head Studs\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":42445781762261,"sku":"CH-LSX-302452","price":2049.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/factory-mast-cylinder-heads-ls3-large-bore-factory-mast-as-cast-port-cylinder-head-pair-w-valves-37200683729109.png?v=1649906139"},{"product_id":"ls7-factory-mast-head-305","title":"LS7 Large Bore | Factory Mast | As Cast Port | Cylinder Head - Pair","description":"\u003ch2 data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eLimited QTY. Available \u003c\/strong\u003e\u003cbr\u003e\n\u003c\/h2\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cspan style=\"background-color: #ffff00;\"\u003e----\u0026gt;\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/LS7_As_Cast_Large_Bore_Spec_Sheet_-_Final.pdf?v=1699646045\"\u003e\u003cspan\u003eDownload Your Cylinder Head Spec Sheet Today\u003c\/span\u003e\u003c\/a\u003e\u0026lt;----\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cspan\u003eIntroducing the Factory Mast \"As Cast\" Port Cylinder Head.                                           \u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eWe launched our Factory Mast product line to deliver an economical product line for our customers. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eWe completely engineered and manufactured our long standing best in class CNC port into an \"As Cast\" port.  This new process saves a significant amount of time and manufacturing cost, which is savings we pass down to you.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eYou have come to love the \"Black Label\" Cylinder heads, but now you can get the same quality at a lower price without\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSACRIFICING\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eperformance.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eManufactured using permanent mold technology, this casting is simply an amazing surface finish and quality.  \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eMast refuses to compromise on materials and methods that may jeopardize longevity, performance, and quality.  When buying Mast Cylinder heads, you are getting the highest level of quality and performance on the market. \u003cbr\u003e\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFull Send, no compromises, no shortcuts, ever.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eDimensional Specs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eBore Size:\u003c\/strong\u003e \u003cem\u003e4.125 (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cspan data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eWeight:\u003c\/strong\u003e\u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e 28 \u003c\/span\u003elbs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003eIntake Valve Size:\u003c\/span\u003e \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e2.250\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.600\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Stem Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e5\/16\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Length:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e5.450\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Angle:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003cem data-mce-fragment=\"1\"\u003e12\u003c\/em\u003e\u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e°\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Spring Pocket Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.580\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Spring Install Height:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e1.800\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eHead Stud Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.4375\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Guide OD: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.502\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Job Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eAs Cast\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eAir Flow \u0026amp; Performance Criteria\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eIntake Max. Flow: \u003c\/strong\u003e\u003cem\u003e375 CFM @ 1.000\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cb\u003eExhaust Max. Flow: \u003c\/b\u003e\u003cem\u003e192 CFM @ 1.000\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Average Flow: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e288 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Average Flow:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e165 CFM\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eHigh Chrome Alloy Steel\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Port Volume:\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e292cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Port Volume:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e104cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eStandard Chamber Volume:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e71cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePort Type:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eAs \u003c\/em\u003e\u003ci data-mce-fragment=\"1\"\u003eCast\u003c\/i\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eMaterials\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCylinder Head Material:\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eA356-T6 Aluminum\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Seat Material:\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eHigh Chrome Alloy Steel\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003cem data-mce-fragment=\"1\"\u003eHigh Chrome Alloy Steel\u003c\/em\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eDeck Thickness:\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.750\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eMast Billet\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Arm Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003cem data-mce-fragment=\"1\"\u003eOE LS7 1.8 or Aftermarket\u003c\/em\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eGuide Material:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e Bronze\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eGeneral\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eMast Billet\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stands Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Dowels Included: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eUses Stock Rocker Bolts:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Bolts Included:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Arm Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eOE LS7 1.8 or Aftermarket\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eHead Bolt QTY: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e6 Bolt Style\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Cover Rail Height:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e+ ½ inch\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCan use OE Valve Cover: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eCustom Options Available\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003ci data-mce-fragment=\"1\"\u003eHead Assembly\u003c\/i\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003ci data-mce-fragment=\"1\"\u003eCustom Chamber Size\u003c\/i\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003ci data-mce-fragment=\"1\"\u003eChamber Softening\u003c\/i\u003e\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003ci\u003e1\/2\" Head Studs\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":42445782876373,"sku":"CH-LSX-302453","price":2049.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/products\/factory-mast-cylinder-heads-ls7-large-bore-factory-mast-as-cast-port-cylinder-head-pair-w-valves-37200701489365.png?v=1649901999"},{"product_id":"lt-factory-mast-head-medbore-oe","title":"Replacement 6.2 Liter LT 4.065\" Bore - Factory Mast OE Stock Replacement - Direct Injected - OE Valves","description":"\u003cp data-mce-fragment=\"1\"\u003eFactory Replacement - NO CNC Porting\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIntroducing Factory Mast Gen 5 LT Replacement Cylinder Heads.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eOur team carefully inspects, pressure tests, machines, and qualifies our gently used factory OE heads.  We machine and qualify the deck, and all surfaces to better than factory.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eGreat as a factory replacement cylinder head, or for your own porting applications.\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFull Send, no compromises, no shortcuts, ever.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eDimensional Specs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eBore Size: \u003c\/strong\u003e\u003cem\u003e4.065\" (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eWeight:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e 29\u003c\/span\u003e lbs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Size:\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003cem\u003e2.126\u003c\/em\u003e\u003cem data-mce-fragment=\"1\"\u003e\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.590\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Stem Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci data-mce-fragment=\"1\"\u003e8mm\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Length: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e5.550\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Angle: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e12.5\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003ex2.61\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003eExhaust Valve Angle: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e12\u003cspan data-mce-fragment=\"1\"\u003e°x2.38°\u003c\/span\u003e\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Spring Pocket Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.325\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eValve Spring Install Height: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e1.880\"\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eHead Stud Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.427\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Guide OD: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.500\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eAir Flow \u0026amp; Performance Criteria\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Average Flow:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci\u003e251\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Average Flow: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e157\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci data-mce-fragment=\"1\"\u003eOE Seat Material\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Port Volume:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e 301cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Port Volume: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e112cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eStandard Chamber Volume:\u003c\/strong\u003e \u003cem\u003e60cc \u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePort Type:\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003ci data-mce-fragment=\"1\"\u003eOE Port\u003c\/i\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eMaterials\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCylinder Head Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e319-T7 Aluminum\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eOE Seat Material\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Valve Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eOE Seat Material\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eDeck Thickness:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.300\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003ePedestal\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Arm Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eLS7 Exhaust 1.8 Ratio\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eGuide Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ePowdered Metal\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eGeneral\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ePedestal\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stands Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci data-mce-fragment=\"1\"\u003eBuilt-In\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Dowels Included:\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003ci data-mce-fragment=\"1\"\u003eN\/A\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eUses Stock Rocker Bolts:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Bolts Included:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Arm Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eLS7 Exhaust 1.8 Ratio\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eHead Bolt QTY:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e4 Bolt Style\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Cover Rail Height: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e+ ½ inch\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCan use OE Valve Cover:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eCustom Options Available\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003ci data-mce-fragment=\"1\"\u003eHead Assembly\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":42445783138517,"sku":"CH-LTX-310511","price":999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/factory-mast-cylinder-heads-replacement-6-2-liter-lt-4-065-bore-factory-mast-oe-stock-replacement-direct-injected-oe-valves-39989742928085.png?v=1682707002"},{"product_id":"lt-factory-mast-head-smallbore-oe","title":"Replacement 5.3 Liter LT 3.780\" Bore - Factory Mast OE Stock Replacement - Direct Injected - OE Valves","description":"\u003cp\u003eFactory Replacement - NO CNC Porting\u003c\/p\u003e\n\u003cp\u003eIntroducing Factory Mast Gen 5 LT Replacement Cylinder Heads.\u003c\/p\u003e\n\u003cp\u003eOur team carefully inspects, pressure tests, machines, and qualifies our gently used factory OE heads.  We machine and qualify the deck, and all surfaces to better than factory.\u003c\/p\u003e\n\u003cp\u003eGreat as a factory replacement cylinder head, or for your own porting applications.\u003c\/p\u003e\n\u003ch4 data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eFull Send, no compromises, no shortcuts, ever.\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eDimensional Specs\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong\u003eBore Size: \u003c\/strong\u003e\u003cem\u003e3.780\" (+)\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eWeight:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003cspan data-mce-fragment=\"1\"\u003e 30\u003c\/span\u003e lbs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Size:\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e1.928\u003c\/em\u003e\u003cem data-mce-fragment=\"1\"\u003e\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Valve Size:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.556\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Stem Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci data-mce-fragment=\"1\"\u003e8mm\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Length: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e5.550\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Angle: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e12.5\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003ex2.61\u003cspan data-mce-fragment=\"1\"\u003e°\u003c\/span\u003e\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003e\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003eExhaust Valve Angle: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e12\u003cspan data-mce-fragment=\"1\"\u003e°x2.38°\u003c\/span\u003e\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Spring Pocket Diameter:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e1.325\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eValve Spring Install Height: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e1.880\"\u003c\/em\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eHead Stud Size: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.427\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Guide OD: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e.500\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eAir Flow \u0026amp; Performance Criteria\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Average Flow:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e217\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Average Flow: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e156\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci data-mce-fragment=\"1\"\u003eOE Seat Material\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Port Volume:\u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e 273cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Port Volume: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e114cc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eStandard Chamber Volume:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e58\u003c\/em\u003e\u003cem data-mce-fragment=\"1\"\u003ecc\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cem data-mce-fragment=\"1\"\u003e\u003c\/em\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePort Type: \u003c\/strong\u003e\u003ci\u003eOE Port\u003c\/i\u003e\u003cbr data-mce-fragment=\"1\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eMaterials\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCylinder Head Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e319-T7 Aluminum\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eIntake Valve Seat Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eOE Seat Material\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eExhaust Valve Seat Material: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eOE Seat Material\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eDeck Thickness:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003e.300\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003ePedestal\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Arm Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eLS7 Exhaust 1.8 Ratio\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eGuide Material:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ePowdered Metal\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eGeneral\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Type:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003ePedestal\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stands Included:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003ci data-mce-fragment=\"1\"\u003eBuilt-In\u003c\/i\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Stand Dowels Included:\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003c\/strong\u003e\u003ci data-mce-fragment=\"1\"\u003eN\/A\u003c\/i\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eUses Stock Rocker Bolts:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Bolts Included:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003eNo\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eRocker Arm Type: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003eLS7 Exhaust 1.8 Ratio\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eHead Bolt QTY:\u003c\/strong\u003e \u003cem data-mce-fragment=\"1\"\u003e4 Bolt Style\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eValve Cover Rail Height: \u003c\/strong\u003e\u003cem data-mce-fragment=\"1\"\u003e+ ½ inch\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\n\u003cstrong data-mce-fragment=\"1\"\u003eCan use OE Valve Cover:\u003c\/strong\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003e\u003cem data-mce-fragment=\"1\"\u003eYes\u003c\/em\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cu data-mce-fragment=\"1\"\u003eCustom Options Available\u003c\/u\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-mce-fragment=\"1\"\u003e\n\u003cli data-mce-fragment=\"1\"\u003e\u003ci data-mce-fragment=\"1\"\u003eHead Assembly\u003c\/i\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Mast Motorsports","offers":[{"title":"Default Title","offer_id":42445783335125,"sku":"CH-LTX-310500","price":999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0666\/1701\/files\/factory-mast-cylinder-heads-replacement-5-3-liter-lt-3-780-bore-factory-mast-oe-stock-replacement-direct-injected-oe-valves-39989741650133.png?v=1682707002"}],"url":"https:\/\/www.mastmotorsports.com\/collections\/all-products\/medium-bore.oembed","provider":"Mast Motorsports","version":"1.0","type":"link"}