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These Ford Racing Z-head assembled aluminum heads for 302/351W include a 63cc CNC combustion chamber and accommodate a 7mm valve. Cast from A356-T6 aluminum with high-flow ports and steel-alloy valve seats installed, they feature manganese-bronze guides and a raised exhaust port exit. They require a competition valve job and may necessitate custom headers for proper fit and optimal performance.
Ford Racing 302/351W Z-Head Aluminum - Assembled 63CC with 7mm Valve
