2010+ Camaro SS LS3 / L99 Parts & Accessories - Engine Components

PRC 237cc CNC Ported LS Cylinder Heads


Precision Race Components All New Cylinder Head Castings Completed With 237cc Runners For Larger Cube LS Based Engines.


  • 237cc Fully CNC Ported Intake Runners
  • 85cc Fully CNC Ported Exhaust Runners
  • Big Bore Chambers Designed For 4.010" Bore+
  • PRC Platinum Spring Kit Rated To .650" Lift
  • 68cc CNC Machined Chambers
  • 2.100" Intake / 1.600" Stainless Valves
  • Factory Rocker Friendly!!*

The all new 237cc cylinder head is custom designed for larger bore engines looking for max power out of a cathedral port layout. The new 237cc port has been flow bench tested to flow over 340cfm & can support 4.010"+ bore street or race engines. Engine dyno testing has shown these cylinder heads support over 650 flywheel horsepower in 408cid applications.