Edelbrock AMC Performer RPM Aluminum Heads

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These street high-performance heads provide out-of-the-box, bolt-on power for AMC muscle cars and Jeep V8s. They offer improved power throughout the rpm range for great throttle response and top-end horsepower. The intake and exhaust runners are CNC-profiled for superior flow and the efficient 54cc dual-quench combustion chamber produces around a 9.5:1 compression ratio in 401 V8s with stock style pistons. Hardened valve seats are compatible with any fuel and a 45° intake seat angle (stock is 30°) offers improved mid- to high-lift flow. A direct bolt-on for 1970 and later engines with 1/2'' head bolts, these heads include step-dowel pins for pre-1970 engines. They feature 2.02'' Intake and 1.60'' Exhaust valves with under-cut 11/32'' stems. An Edelbrock Step Washer Kit is available for use with 1969 and earlier engines with 7/16'' head bolts. Dyno-matched Edelbrock Performer, Performer RPM and RPM Air-Gap manifolds are available to complete your AMC power package. All Edelbrock heads are sold individually.