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.
Combustion chamber volume: 60cc
Intake runner volume: 190cc
Exhaust runner volume: 90cc
Intake valve diameter: 2.05"
Exhaust valve diameter: 1.60"
Valve stem diameter: 11/32"
Valve guides: Manganese bronze
Deck thickness: 5/8"
Valve spring diameter: 1.55"
Valve spring maximum lift: .580"
Rocker stud: 7/16"
Guideplate: Hardened Steel
Pushrod diameter: 5/16"
Exhaust port location: Stock
Spark plug fitment: 14mm x 3/4" reach, gasket seat
Made In: USA