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.

• 100cc semi-open chamber heads feature a 1-1/2° rolled over (angle milled) design that improves intake port alignment and provides a smaller combustion chamber without shrouding the valves.
• 9.2:1 compression with flat-top pistons for an outstanding high performance street head.
• 8.8:1 compression ratio when used on 1987-up TBI-equipped 7.4L dished piston motors.
• Produced over 450 ft/lbs. torque when combined with our Multi-Point EFI System in a late model 1987-95 application.
• Performer heads have an exhaust crossover passage.

Combustion chamber volume: 100cc
Intake runner volume: 290cc
Exhaust runner volume: 110cc
Intake valve diameter: 2.19"
Exhaust valve diameter: 1.88"
Valve stem diameter: 11/32"
Valve guides: Manganese bronze
Deck thickness: 9/16"
Valve spring diameter: 1.55"
Valve spring maximum lift: .700"
Rocker stud: 7/16"
Guide plate: Hardened Steel
Pushrod diameter: 3/8"
Valve Angle: 26°
Exhaust port location: Stock
Spark plug fitment: 14mm x 3/4" reach, gasket seat
Made In: USA

Product Reviews for ED60499 - EDELBROCK