302/351W "Z-Head" Aluminum Head-Bare 63CC

Cast from prime A356 T6 aluminum, these 'Z' heads from Ford Racing were designed using solid modeling technology. They feature high-flow ports and steel alloy intake and exhaust valve seats installed (they do require a competition valve job and bowl blending). The manganese-bronze valve guides are installed with a semi-finished I.D. and the combustion chambers are CNC-machined. Laser-cut guideplates are included, and they accept both tapered seat and gasket-style 14mm spark plugs.

• Designed Using Solid Modeling Technology
• Cast From Prime A356 T6 Aluminum
• Heads are Cast w/High-Flow Ports
• 20 Degree Inline Valves
• Required Competition Valve Job and Bowl Belding
• Steel Alloy Intake/Exhaust Vale Seats Installed
• Manganese-Bronze Valve Guides Installed w/Semi-Finished ID
• 63cc CNCd Combustion Chamber
• 85cc Exhaust Port Volume As Cast
• Raised Exhaust Port Exit
• Custom Headers May Be Required
• Made in the USA