Edelbrock Performer RPM Aluminum Cylinder Head, No Crossover Pipe, Complete, USA Made, 1967-91 AMC V8 (FREE lower 48 ground shipping in approx. 1-2 weeks)

The Edelbrock Performer RPM cylinder head is designed as a bolt-on performance upgrade for any 1967-91 AMX, Javelin or Jeep with a 343, 360, 390 or 401 AMC V8 engine. They include adjustable rocker studs and guide plates set up for use with small-block Ford-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. 

A Complete head includes larger than-stock valve springs to handle most high-lift cams. They feature stock location ports for compatibility with standard manifolds and headers. A direct bolt-on for 1970 and later engines with 1/2" head bolts, This head includes step-dowel pins for pre-1970 engines. Their dual-quench combustion chambers produce approximately 9.5:1 compression in 401 V8 engines. The 45deg intake seat angle offers improved mid- to high-lift flow over the stock 30deg angle. 

Edelbrock Performer RPM aluminum cylinder heads feature threaded inserts in the rocker studs and exhaust manifold bolt holes for superior strength and durability. They also include hardened seats, bronze valve guides, and fully machined valve cover rails for a more consistent gasket seal. These heads offer improved power throughout the RPM range for greater throttle response and top-end horsepower.

• Cast aluminum construction is 50 lbs. lighter than factory cast iron
• Intake flange is dual-drilled to accommodate early and late model intake bolt patterns, covering 1967-91.
• Larger than-stock valve springs to handle most high-lift cams.
• Dog leg port design flow 50% more flow than rectangular port design
• 2.02 intake and 1.60 exhaust valves
• 58cc combustion chamber volume, 185cc intake runner volume, 70cc exhaust runner volume
• Fits all factory and aftermarket AMC intake manifolds
• Fits 1967-91 AMC 343, 360, 390, or 401 V8 engines
  
• Match with Edelbrock head gasket sets.; Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat.; Use Edelbrock Step Washer Kit #9693 on 1967-69 engines with 7/16" head bolts.; Deck thickness: 5/8"; Rocker stud diameter: 3/8"; Pushrod diameter: 5/16" (width of slot in guide plate).

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  Combustion Chamber Volume (cc): 54 Intake Runner Volume (cc): 185cc Exhaust Runner Volume (cc): 70cc Cylinder Head Style: Assembled Cylinder Head Material: Cast aluminum Intake Port Shape: Rectangular Intake Valve Diameter (in.): 2.020 in. CNC-Machined Combustion Chamber: No CNC-Machined Intake Runner: No CNC-Machined Exhaust Runner: No Intake Port Location: Standard Exhaust Port Location: Standard Intake Valves Included: Yes Exhaust Valves Included: Yes Exhaust Valve Diameter (in.): 1.600 in. Valve Springs Included: Yes Maximum Valve Lift (in.): 0.580 in. Camshaft Style: Hydraulic flat tappet Outside Diameter of Outer Spring (in.): 1.550 in. Damper Spring Included: Yes Number of Springs Per Valve: Single Retainers Included: Yes Retainer Material: Steel Locks Included: Yes Lock Style: 7 degree Valve Stem Seals Included: Yes Valve Stem Seal Style: Positive stop Rocker Arm Studs Included: Yes Rocker Arm Nut Thread Size: 3/8 in.-24 Rocker Arms Included: No Rocker Arm Nuts Included: No Guideplates Included: Yes Guideplate Pushrod Size: 5/16 in. Valve Cover Mounting Style: Perimeter bolt Accessory Bolt Holes Drilled: Yes Intake Valve Angle: 18 Valve Guides Included: Yes Valve Guide Material: Manganese bronze Valve Seats Machined: Yes Valve Seat Machine Style: 3-angle Valve Seat Material: Ductile iron Cylinder Head Color: Natural Steam Holes Drilled: No Oiling Style: Through head Machined for O-Ring: No Heat Crossover: No Remanufactured: No Quantity: Sold individually. Installation Notes:  Not recommended for 290 or 304 engines due to potential interference with the smaller bore diameter

This cylinder head generates noticeable power and performance for AMC engines from 1970-1991 AMC 343, 360, 390 or 401 V8.  It also works well with aftermarket throttle body EFI systems for optimum fuel atomization.

• Edelbrock aluminum cylinder head and installation instructions

• If you are unsatisfied with your purchase, here's what we can do: If your product is defective, damaged in transit, or the wrong merchandise, we are happy to exchange it for the same product within 30 days. If your product is custom manufactured to order, it is not returnable.

• Manufacturer Warranty:  1-year limited