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The Edelbrock Performer Pontiac D-Port bare cylinder head for 1962-1979 389-455 engines with a 4.060in or larger bore is cast with thick port walls and a compact port size ideal for CNC or hand porting. The bare 87cc head is machined for optimized oil return passages and is suited for professional porting and assembly.
Edelbrock Performer D-Port Bare 87cc
