Performer RPM heads are perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-pants performance is needed. These heads give great torque and horsepower up to 6500 rpm.

• Designed for 1968-87 429-460 Fords
• Ideal for high-performance street and drag racing
• Over 500+ hp at 6500 rpm (+30 hp more than ported factory heads) and 525+ ft/lbs. of torque at 4500 rpm with the Performer RPM Total Power Package
• Intake ports can be opened up to match Victor manifolds # ED2965 and # ED2966
• Performer RPM 460 heads accept factory exhaust, aftermarket headers and factory valvetrain components.
• Requires the use of 3/8" diameter pushrods

Combustion chamber volume: 75cc
Intake runner volume: 292cc
Exhaust runner volume: 100cc
Intake valve diameter: 2.19"
Exhaust valve diameter: 1.76"
Valve stem diameter: 11/32"
Valve guides: Manganese bronze
Deck thickness: 5/8"
Valve spring diameter: 1.55"
Valve spring maximum lift: .700"
Rocker stud: 7/16"
Guide plate: Hardened Steel
Pushrod diameter: 3/8"
Exhaust port location: Stock
Spark plug fitment: 14mm x 3/4" reach, gasket seat
Made In: USA