Edelbrock Cylinder Head

Rpm 427 Low-riser/ Medium-riser Cylinder Head

The Edelbrock Performer RPM Cylinder Heads are designed for use with 1961-76 390-427-428 Ford applications. Edelbrock Performer RPM heads are perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-pants performance is needed. These cylinder heads deliver great throttle response and power from 1500 to 6500 rpm. They also feature the highest quality intake and exhaust valves and valve springs. For use on pre-pollution controlled vehicles only.

• EQUIPPED WITH SPRINGS FOR USE IN HYDRAULIC ROLLER CAMSHAFT APPLICATIONS
• 428 Cobra Jet-sized valves promote excellent flow for streetable power
• Rocker shaft stud kit #6009 provides better rocker shaft retention and is highly recommended for use with Edelbrock FE heads. It eliminates wearing of the threads and the possibility of bottoming the rocker shaft bolts in the head.
• Match with Edelbrock head gasket sets.
• 390 GT exhaust will not fit.
• Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat. Deck thickness: 5/8".

Specifications:

• CNC Ported: No
• Combustion Chamber Volume: 76.0 cc
• Deck Height: 10.170 in
• Deck Thickness: 0.625 in
• Exhaust Valve Diameter: 1.660 in
• Guide Plates Included: No
• Intake Runner Volume: 170.0 cc
• Intake Valve Diameter: 2.090 in
• Material: Aluminum
• Push Rod Diameter: 0.312 in
• Valve Angle: 13 deg
• Valve Spring Diameter: 1.550 in
• Valve Spring Maximum Lift: 0.600 in
• Valve Stem Diameter: 0.371 in

Vehicle Fitments: