Description

  • The images represent a machined version of the cubed (unmachined) product. Chevrolet Performance does not supply a fully machined version of the C5R head. Image is for reference only.
  • 355-T7 “as-cast” aluminum racing head
  • Professional porting and machining of combustion chambers required
  • No seats or guide machining
  • C5R rectangle-port design – requires aftermarket rectangle-port intake manifolds
  • Designed for big-bore (4.100″ min) LS7/C5R/LSX blocks
  • 210-cc “as-cast” intake ports
  • 70-cc “as-cast” exhaust ports, same as production LS6
  • 30-cc “as-cast” combustion chambers
  • All fasteners are metric
  • Capable of 800+ horsepower
  • Standard LS exhaust port design