Ideal entry level upgrade for the early LS engine

Budjet pocket porting and port blend giving improved mid and hi lift flow all round

Performance increase back to back testing of 30rwkw increase.

Single ovate beehive spring up to 600 lift.

Factory valves used

Cleaned refaced and tested,full assembled and cleaned ready to bolt up.

Note- we require youre heads to build from 2 week turnaround or can do exchange on request.

EMAIL for easy door to door interstate freight deals.