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GM LS1 Stage 1 FED Heads



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From a heads cam LS build to a moderate power adder street car.  Our Stage 1 ported GM cathedral port heads are EXACTLY what your ride needs to put the power to the ground.  Need pushrods, cam, intake, lifters, gaskets or anything else LS on the planet?  We’ve got them on the shelf ready to ship!  Contact us now if you have any questions!

Tech Specs: GM LS1 Stage 1 FED Heads

  • Reuse Factory Intake Valves: 2.040″
  • Reuse Factory Exhaust Valves: 1.550″
  • Intake Volume: 216cc
  • Exhaust Volume: 82cc
  • Stock Chamber
  • Seats: Stock Iron
  • Guides: Stock Powdered Metal
  • Minimum Bore: 3.900
  • Intake Manifold Recommendation: Stock, MSD Atomic or Fast LSXR
  • Stock Rockers. Smith Brothers Trunnion Upgrade Kit Recommended
  • Springs: FED .660″ Dual LSX Spring Kit with Titanium Retainers
  • Intake Peak Flow: 302
  • Exhaust Peak Flow: 240

Also Includes:

  • Teardown
  • Wash
  • CNC Port
  • CNC Valve Job
  • FED Logo
  • Hand Blend
  • Surface 0.010″
  • Final wash and assembly
  • Pressure Test



Additional information


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