My Account
Full Send Late Model Performance
Search
Factory Mast Cylinder Head CNC Ported LT 6.2 Liter Cylinder Head
Factory Mast Cylinder Head CNC Ported LT 6.2 Liter Cylinder Head
Factory Mast Cylinder Head CNC Ported LT 6.2 Liter Cylinder Head
Factory Mast Cylinder Head CNC Ported LT 6.2 Liter Cylinder Head
$ 1,499.00

CNC Ported GM LT Gen 5 - 5.3 Liter Cylinder Heads (pair) - Standard Valve

+

Only left in stock

5.3 Liter GM Gen V LT performance CNC cylinder heads (pair w/factory valves)
Factory Mast performance takes the OE head casting and improves it. 
We completely overhaul and deck the machined surfaces.  CNC port intake and exhaust port, with a performance valve job.  
These heads retain the factory DI port injection hole, but if you're looking to run port fuel injection, add these plugs to your package.  Direct Injection Plug Kit

NO CORE CHARGE, NO SENDING YOUR HEADS IN

Our 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.

Specs:

  • Sold as Pair
  • For LT Gen V 5.3 with 3.780+ bore size
  • Comes with Factory Refurbished Valves
  • Performance Valve Job
  • CNC ported intake and exhaust ports
  • CNC Chamber Cleanup
  • Drop in Replacement for Factory Gen V Bore Size
  • 1.930 Intake Valve & 1.550 Exhaust
  • 58 cc Chamber (CNC ported)
  • 273 cc Intake Runner Volume
  • 217 CFM average flow up to 0.700 Lift
  • Pressure Tested & Final Decked