RPM BIG-BLOCK CHEVY OVAL PORT CYLINDER HEAD HYDRAULIC FLAT TAPPET CAM

Brand New Edelbrock Performer RPM for Big Block Chevy with Oval Port Cylinder Head & Hydraulic Flat Tappet Camshaft, 9.5:1 Compression (Part #60459).

The Edelbrock #60459 Performer RPM O-Port cylinder head is designed for Big-Block Chevy applications. The Edelbrock #60459 Performer RPM head is perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-pants performance is needed. This cylinder head delivers 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.

Installation Notes:

• Equipped with springs for use in hydraulic flat tappet camshaft applications
• Match with Edelbrock head gasket sets
  
• These oval port heads will support over 540 hp with 9.5:1 compression when used as part of the Total Power Package
• Unique oval intake port shape produces flow similar to rectangular ports, but the smaller port size provides excellent seat-of-the-pants performance and crisp throttle response
• Semi-open chamber design maximizes efficiency with street-able compression ratios
• Smaller-than-stock 11/32" valve stems promote excellent flow and lighter valve weight

Specs:

• Series: Performer RPM
  
• Material: Aluminum
  
• Horsepower: 500-600 HP
  
• Seat Angle: Exhaust 45 deg/Intake 45 deg
  
• Recommended spark plugs: Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat.
• Intake Valve Diameter: 2.19 in
  
• Intake Runner Volume: 290 cc
  
• Push Rod Diameter: 0.4375 in
  
• Rocker Stud Diameter: 0.4375 in
• Valve Angle: 26 Degree
  
• Valve Spring Diameter: 1.50 in
  
• Valve Spring Maximum Lift: 0.700 in
  
• Valve Stem Diameter: 0.3438 in
  

You can view and download the complete assembly instruction booklet here.