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WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Bare C5R Racing Cubed Cylinder Head
Original price was: $1,921.42.$1,772.51Current price is: $1,772.51.
- Capable of over 800 HP
- Designed for big bore (4.100″ min) LS7/C5R/LSX blocks
- 210cc “as-cast” intake ports
- 70cc “as-cast” exhaust ports, same as production LS6
- 30cc “as-cast” combustion chambers
Bare C5R Racing Cubed Cylinder Head
P/N 25534393
- 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
- 210cc “as-cast” intake ports
- 70cc “as-cast” exhaust ports, same as production LS6
- 30cc “as-cast” combustion chambers
- All fasteners are metric
- Capable of over 800 horsepower!
- Standard LS exhaust port design
Note: Images represent a machined version of the P/N 25534393 cubed (unmachined) product. Chevrolet Performance does not supply a fully machined version of the C5R head. Images are for reference only.
Additional required components:
- 12582179 (2) or 19170419 Gaskets
- 11562524 (20) Bolts
- 12558840 (10) Bolts
- 12571164 Spark Plug
Engine application: C5R
WARNING: These auto parts can expose you to chemicals including phthalates and lead. Installing or using these parts can expose you to other parts containing these chemicals and to engine exhaust, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.