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The Edelbrock Performer RPM bare cylinder head (#60947) for 1955–1986 small‑block Chevy applications provides improved throttle response and broad power from 1,500–6,500 rpm. Cast and machined in the USA, it uses efficient port and combustion chamber shapes, includes manganese‑bronze valve guides and ductile iron seats, and features thicker deck surfaces for enhanced durability in stock and racing builds.
Edelbrock Cylinder Head SBC NHRA Legal 64cc Angled Plug Bare Single
