Edelbrock 609919 - Edelbrock SB-Chevy Performer RPM Aluminum Cylinder Heads

Edelbrock Performer RPM S/B Cylinder Heads
The Performer RPM S/B aluminum cylinder heads are designed for SB-Chevy 302, 327, 350 and 400ci engines up to 1986. These heads feature 170cc intake ports and 60cc exhaust ports. These heads feature 2.020'' intake and 1.600'' exhaust valves and 1.460'' valve springs that allow a .575'' maximum lift. To use stock rockers on the Performer RPM, .100'' longer than stock pushrods are required.