ED60119 - EDELBROCK PERFORMER RPM CYLINDER HEADS COMPLETE FITS AMC 1967-91 EACH

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.

Bolt-on Edelbrock performance for AMX, Javelin, Jeep and more. Designed for 1967-91 343, 360, 390 and 401 AMC engines. These heads include adjustable rocker stud and guide plate set-up for use with small block Chevy style adjustable 1.6:1 ratio rockers. The intake flange is dual-drilled to accommodate early and late model intake bolt patterns, covering 1967-91. Complete heads include larger-than-stock valve springs to handle most high-lift cams. Features stock location intake ports for compatibility with standard manifolds and headers. A direct bolt-on for 1970 and later engines with 1/2" head bolts, these heads include step-dowel pins for pre-1970 engines. Dual-quench combustion chamber produces approximately 9.5:1 compression in 401 V8s. 45˝ intake seat angle offers improved mid- to high-lift flow over the stock 30˝ angle. Made in USA.

• Requires the use of hardened push rods.
• 54cc dual-quench combustion chambers produce around 9.5:1 compression on 401 cid.
• Direct bolt-on for 1970 & later engines with 1/2" head bolts and include stepped dowel pins for pre 1970 engines.
• Use Edelbrock step washer kit # ED9693 on 1967-69 engines with 7/16" head bolts.

Combustion chamber volume: 54cc
Intake runner volume: 185cc
Exhaust runner volume: 70cc
Intake valve diameter: 2.02"
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: 3/8"
Guideplate: Hardened Steel
Pushrod diameter: 5/16"
Valve Angle: 18˝
Exhaust port location: Stock
Spark plug fitment: 14mm x 3/4" reach, gasket seat
Made In: USA