The Edelbrock Performer RPM cylinder head for 1962-1979 Pontiac 389-455 engines with 72cc combustion chambers is patterned after the 1969-70 Ram Air IV head and delivers improved throttle response and broad power from about 1,500 to 6,500 rpm. It includes high-quality intake and exhaust valves and valve springs for street performance and muscle car applications.
Edelbrock Single Perf Pontiac 72cc Head Comp