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Ford Racing Z-head aluminum cylinder heads are cast from prime A356-T6 aluminum and arrive assembled with 63cc CNC combustion chambers. They feature high-flow ports, steel-alloy intake and exhaust valve seats, and manganese-bronze valve guides installed with a semi-finished ID. Designed for 302/351W use, the heads deliver improved flow but require a competition valve job and bowl blending before final assembly.
Ford Racing 302/351W Z-Head Aluminum - Assembled 63CC
