115cc Combustion Chamber
320cc Intake Runner
2.25 Intake Valve
1.88 Exhaust Valve
Stainless Steel Valves 

Procomp heads are asssembled by skilled professionals and use the best components in the industry.  All Procomp heads are assembled with the following:

Stainless steel 1 piece swirl polished undercut valves, high performance valve springs(flat tappet or roller, customer must specify , heads can be built to suit, some restrictions and price changes may apply) Chromemoly retainers, 10 degree valve locks,  screw in studs and guide plates.

Procomp heads come ready to install right out of the box.