"Z-Head" Assembled Aluminum Cylinder Head
• Fits 302/351W
• Intake Valve: 2.02"
• Exhaust Valve: 1.60"
• Intake Ports: 204cc
• Exhaust Ports: 85cc
• Combustion Chambers: 63cc
• CNC Ported
• 1/Pkg.
  
  
• Manufacturer Part Number: M-6049-Z304DA

  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.

• Cast From Prime A356 T6 Aluminum
• Heads are Cast w/High Flow Ports
• 20 Degree Inline Valves
• 145 lbs. @ 1.80 in. Valve Spring Closed Pressure
• 358 lbs. @ 1.175 in. Valve Spring Open Pressure
• Steel Alloy Intake/Exhaust Valve Seats
• Manganese-Bronze Valve Guides
• 63cc CNCd Combustion Chamber
• 204cc Intake Port Volume As Cast
• 85cc Exhaust Port Volume As Cast
• Made in the USA

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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