Order Edelbrock 60559 Performer Cylinder Head

Edelbrock 60559 Performer RPM Cylinder Head

The Edelbrock Performer RPM Rectangular Port Aluminum Cylinder Heads have specially designed intake and exhaust ports for increased flow and velocity over standard big-block heads. These heads feature a highly-efficient 118cc open-style combustion chamber for maximum performance. It is engineered with high-velocity 315cc long and 300cc short intake runners. They are designed for street and high-performance vehicles, operating from 2,500-7,000 RPM. The stainless steel, hardened tip 2.19'' intake and 1.88'' exhaust valves have smaller-than-stock 11/32'' valve stems to promote excellent flow and lighter valve weight. The deck surface and water jackets were specially designed to work with all big-block engines. The volume of the intake runner is 315cc and the exhaust runner is 300cc. The heads include top-quality ARP rocker studs, bronze guides and hardened, ductile iron valve seats.