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