Ford Racing Z-Head Cylinder Head 63CC Aluminum With 7MM Intake Valves 302/351W

Ford Racing Parts Z-Series Aluminum Cylinder Heads offer a range of features, designed to enhance the performance of any Ford small-block Windsor engine. Crafted from A356 T-6 aluminum and utilizing advanced solid-modeling technology, these sturdy components boast high-flow ports plus steel alloy intake and exhaust valve seats with manganese-bronze valve guides. Additionally, they can accommodate either tapered seat or gasket-style 14mm spark plugs, making them an ideal choice for experiences mechanics seeking to push their vehicle's performance potential.

Features & Benefits:
- A356 T-6 Aluminum Casting
- Heads are Cast with High-Flow Ports
- 20-Degree Inline Valves
- Stainless Steel 7mm 2.02" Intake & 1.60" Exhaust Valves
- PAC 1219X Conical Style Valve Springs with Machined Retainers & Valve Locks
- Valve Spring Closed Pressure: 145lbs @1.800"
- Valve Spring Open Pressure: 358lbs @1.175"
- Includes Laser-Cut Guide Plates
- Steel Alloy Intake & Exhaust Valve Seats
- Manganese-Bronze Valve Guides
- 63cc CNC'd Combustion Chamber
- Intake Port Volume as Cast: 204cc
- Exhaust Port Volume as Cast: 85cc
- Made in the USA
- Sold Individually or in Pairs (2)

Fitment:
- Small Block Ford 302 & 351W V8 Engines

Tech Tips:
- Accepts both tapered seat- and gasket-style 14mm spark plugs (Motorcraft AGSP-32-PP, Autolite 3924, 3924 - Not included)
- Requires 1.65:1 or 1.5:1 ratio roller rocker arms with .150" offset intake pushrod cup (Not Included)
- Uses Felpro exhaust gasket part number 1487 (Not included)

Please Note: Check piston-to-valve clearance including radial valve clearance before installing these cylinder heads on your engine.

*This part is designed and intended for competition use only or off-highway use only. It should not be installed on a vehicle that is driven on public roads and highways. Installation of this part on a vehicle driven on public roads and highways is likely to violate US and Canadian laws and regulations pertaining to motor vehicle emissions.