XR8 race -street head package available for modular 5.4 litre BA-BF-FG 

Ideal suit supercharged application

Full port job including head resurface and multi angle Newen cnc seat-bowl profiling

Single ovate wire beehive springs and titanium retainers 105 lbs seat pressure .530 lift capable.

Manley single piece race valves -oversize head diameter.

Completely assembled with new seal ready to bolt on.

NOTE we require youre castings to do the work on

Good easy freight services available

Performance Camshafts available EMAIL for details.