The Edelbrock Performer Pontiac D-Port cylinder head (part #61595) is cast for 1962–79 Pontiac V8 engines—389, 400, 421, 428 and 455 ci—with 4.060" or larger bores. It features optimized oil return passages, relocated spark plug position nearer the exhaust valve, extra-thick port walls and a compact port profile suitable for CNC or hand porting. Complete heads include guide plates, rocker studs and a valvetrain for direct bolt-on use.
Edelbrock Cylinder Head Pontiac Performer D-Port 72cc Chambers for Hydraulic Roller Cam Complete