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The Edelbrock Performer RPM cylinder head #61025 is a drop-in performance upgrade for 1965–1976 Oldsmobile 400, 425 and 455 big-block V8 engines equipped with hydraulic roller cams. It features a redesigned 77cc combustion chamber, larger intake valves, refined bowl blending and improved intake/exhaust ports for better flow. Cast and machined in the USA, the head ships complete with intake and exhaust valves and valve springs for straightforward installation.
Edelbrock Single Performer RPM Oldsmobile Big Block Cylinder Head (For Use w/ Hyd Roller Camshaft)
