The Ford Racing bare Z-head aluminum for 302/351W offers a 63cc CNC combustion chamber in a high-flow port casting made from prime A356-T6 aluminum. These bare heads include manganese-bronze valve guides with a semi-finished ID and steel-alloy valve seats installed as cast; a competition valve job and bowl blending are required, and custom headers may be necessary depending on exhaust routing.
Ford Racing 302/351W Z-Head Aluminum Head - Bare 63CC