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The Edelbrock #61525 Performer RPM CNC cylinder head for 1962–79 Pontiac 389–455 engines features a CNC‑machined 87cc combustion chamber that is ideal for 9.5:1 compression engines and delivers strong street performance on lower‑octane fuel. Patterned after the 1969–70 Ram‑Air IV port flange configuration, the head improves flow consistency and is suited for Pontiac street builds seeking reliable mid‑range and top‑end power.
Edelbrock Cylinder Head Performer RPM CNC Pontiac 1962-1969 455 CI V8 87 cc Combustion Chamber
