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The Edelbrock #61529 Performer RPM CNC cylinder head for 1962–79 Pontiac 389–455 engines features a CNC‑machined 87cc chamber and is intended for hydraulic flat‑tappet cam applications. The CNC chamber creates a precise, consistent combustion space that improves flow performance and supports reliable street power. Patterned after late‑1960s Ram‑Air IV Pontiac flange configuration, this head suits Pontiac builds aiming for controlled mid‑range and top‑end gains.
Edelbrock Cylinder Head Performer RPM CNC Pontiac 1962-1969 455 CI V8 87 cc Combustion Chamber
