RPM Automotive Machine Shop Services

707-584-8230

RPM Automotive Machine Shop Services

The art of head porting is designed to make your engine function with less work. The idea of allowing air and fuel in and exhaust out with a higher level of efficeincy. All of our porting here at RPM starts with a performance valve job to make sure all your valve seats are cut correctly for optimum flow characteristics. If your engine can breath easier, then your engine can turn that into power.

Porting heads correctly also involves making sure the porting is done to match the other components that are going into your engine.

Street Port	Starts with a valve job. Then valve seats are blended into the heads. Minor pocket porting is done behind the valves and into the head. Focusing on the short side radius of both the intake and the exhaust ports.
Performance Port	Services above plus also blending the pockets into the runners of both exhaust and intake. Performance porting can also sometimes include matching of the intake manifold to the heads.
Race Port	Above services plus full and complete porting and polishing of all runners in the heads. Both intake and exhaust are worked from entry to exit. Special attention is paid to all mating surfaces to be sure everything is lined up correctly.