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Vehicle Info NeededPerformer AMC/Jeep Cylinder Head with Exhaust Crossover
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Lowest Price Guarantee- 1967-1991 AMC 343-401ci
- Valve Springs for Hydraulic Flat Tappet
- Port Volumes: 185cc/70cc
- Valve Size: 2.02"/1.60"
- 54cc Combustion Chambers
- With Exhaust Crossover Port
- Max Lift: .580"
- Assembled, Sold Each
- Out-of-the-Box Bolt-On Performance
- 54cc Dual-Quench Combustion Chamber
- Offers Improved Mid To High Lift Flow
Valve Lift Intake Exhaust .100' 65 52 .200' 130 96 .300' 192 127 .400' 235 163 .500' 258 182 .600' 260 190 .700' N/A N/A Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28' H2O Emissions Note:
This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.
CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART
Since founder Vic Edelbrock Sr. began building performance intake manifolds in 1938, Edelbrock has grown into one of the most trusted names in American high-performance parts, from carburetors and intake manifolds to cylinder heads, crate engines, and EFI systems. JEGS has spent decades supplying Edelbrock components to racers, engine builders, and street enthusiasts, backing this extensive lineup with in-house technical support, fast shipping, and a Price Match Guarantee so you can choose proven Edelbrock parts with confidence.
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.
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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. Made In The USA!
Features:
- 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: Hardended Steel
- Pushrod Diameter: 5/16"
- Valve Angle: 18°
- Exhaust Port Location: Stock
- Spark Plug Fitment: 14mm x 3/4 Reach, Gasket Seat
- Made In The USA!
Edelbrock AMC Performer & Performer RPM Aluminum Cylinder Heads unlock serious performance gains while delivering remarkable weight savings for AMC engine enthusiasts. Crafted from high-quality aluminum, these heads are a smart upgrade over traditional cast-iron units—offering improved heat dissipation, better throttle response, and a lighter front end to enhance handling and overall engine balance.
The Performer versions are ideal for daily-driven or mild-performance builds. They deliver smooth power and reliable airflow at lower revs while retaining the original AMC valvetrain design. The Damon-enhanced Performer RPM heads, however, are tailored for higher-performance applications—featuring larger intake ports and a better valve angle to support aggressive camshaft profiles and multi-carb setups.
If you're refreshing a classic or building a modern street machine, these heads offer fitting options for various AMC blocks. The Performer heads match effortlessly with amc 304 heads applications, providing a significant breathing and power upgrade while maintaining excellent streetability. Enthusiasts running 360 engines will benefit similarly—amc 360 heads deliver improved flow and performance for spirited driving without sacrificing reliability. If you’re tackling a big-bore build, the Performer RPM heads offer serious airflow gains for iron-clad amc 401 aluminum heads performance potential.
Whether restoring, upgrading, or customizing, these heads deliver dependable horsepower, smarter airflow, and weight reduction—all wrapped in an engine-bay-ready aluminum package. Installation is straightforward for most stock locations, and compatibility with matching Edelbrock intake ports keeps tuning seamless. Treat your AMC-powered ride to hardware that combines durability, efficiency, and performance—upgrade to Performer or Performer RPM heads and experience the thrill of a better-breathing engine.
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