[{"id":170473980001,"handle":"all-products","updated_at":"2024-09-08T18:15:03-05:00","published_at":"2020-09-09T18:55:52-05:00","sort_order":"best-selling","template_suffix":"pf-e03b4526","published_scope":"global","title":"All The Parts","body_html":""},{"id":347630918,"handle":"best-selling-products","title":"Best Selling Products","updated_at":"2024-09-08T18:15:03-05:00","body_html":null,"published_at":"2016-10-02T12:22:59-05:00","sort_order":"best-selling","template_suffix":null,"disjunctive":true,"rules":[{"column":"title","relation":"contains","condition":"Best Selling"},{"column":"title","relation":"not_contains","condition":"Best Selling"}],"published_scope":"global"},{"id":239797797063,"handle":"black-label","updated_at":"2024-09-08T14:10:01-05:00","published_at":"2020-12-22T16:49:49-06:00","sort_order":"best-selling","template_suffix":"pf-cb6e825d","published_scope":"global","title":"Black Label","body_html":""},{"id":239860482247,"handle":"black-label-custom-built-engines","updated_at":"2024-07-18T13:10:33-05:00","published_at":"2020-12-23T13:23:06-06:00","sort_order":"manual","template_suffix":"pf-5c45a8b3","published_scope":"global","title":"Black Label - Custom Built Engines","body_html":""},{"id":29758751,"handle":"ls-engines","updated_at":"2024-07-22T14:10:58-05:00","published_at":"2014-10-22T13:00:00-05:00","sort_order":"manual","template_suffix":"pf-5c45a8b3","published_scope":"global","title":"LS Engines","body_html":"\u003cp style=\"text-align: center;\"\u003eHandbuilt LS engines from Mast Motorsports. Complete your engine with front drives, engine controllers and everything in between.\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eEngine lead times vary - please call \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e1-866-551-4916 for 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","image":{"created_at":"2019-07-17T19:59:16-05:00","alt":null,"width":1771,"height":2048,"src":"\/\/www.mastmotorsports.com\/cdn\/shop\/collections\/LS7_427_2.9L_5b220b5e-531f-4e78-ab93-e0c33003d409.png?v=1563411558"}},{"id":152865931361,"handle":"all-engines","updated_at":"2024-07-22T14:11:32-05:00","published_at":"2019-10-17T10:47:43-05:00","sort_order":"manual","template_suffix":"pf-5c45a8b3","published_scope":"global","title":"Products - Engines","body_html":"\u003cp style=\"text-align: center;\"\u003eEngine lead times vary - please call \u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e1-866-551-4916 for 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\u003c!----\u003e"}]
Type: LS3 6.8L Displacement: 416 Cubic Inches Compression Ratio: 11.2:1 Bore x Stroke: 4.065 x 4.000 Rev Limit: 7000 RPM Crank: Callies Forged Rods: Callies H-Beam Pistons: Mahle Pistons Cam: Mast LS3 416 HO Heads: Mast Black Label LS3 255 Intake Valves: Solid Stainless Exhaust Valves: Solid Stainless Intake: LS3 Car Intake Valve Springs: PAC Racing Dual Springs
*All hp numbers will be within 2% of the advertised number.
Mast Motorsports Handbuilt LS engines feature the best components and are assembled by professional machinist. All handbuilt engines feature ARP Main Studs, ARP Head Bolts, and a balanced and blueprinted block.
The 550 Performance Street Engine has a Mast Motorsports engineered camshaft that is custom ground on a Mast Motorsports billet cam core. The 416 foundation is a honed and decked LS3 aluminum block with a 4.000” forged Callies rotating assembly with Mahle pistons that is topped off with Mast Custom Cast heads and an LS3 intake manifold. ARP fasteners are used throughout and Mast pushrods ride on LS7 hydraulic roller lifters. The 550 Performance Street Engine is the first release of a diverse line of Mast Motorsports hand built Turnkey Crate Engines that are designed for the Hot Rod/Muscle Car market. The 550 Performance Street Engine peaks at the 550+ horsepower mark and is competitively priced for such a powerful complete fuel injected turnkey crate engine.
Applications: - JK Jeep Swaps - Classic Hot Rod's - Daily Drivers
