Edelbrock Performer RPM Cylinder Head 60559 Big-Block Chevy Rectangular Port

  
Edelbrock Performer RPM Cylinder Head 60559. The Edelbrock #60559 Performer RPM Rectangle Port cylinder heads are designed for BB Chevy engines. The Edelbrock #60559 Performer RPM heads are perfect for street performance, daily drivers and muscle cars where more performance is needed. The Edelbrock #60559 Performer RPM Rectangle Port cylinder head is designed for Big-Block Chevy applications.

The Edelbrock #60559 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 2500 to 7000 rpm.

They also feature the highest quality intake and exhaust valves and valve springs. For use on pre-pollution controlled vehicles only. Combustion Chamber Volume (cc):118. Intake Runner Volume (cc): 315cc/300cc.

Exhaust Runner Volume (cc):110cc. Camshaft Style: Hydraulic flat tappet. Outside Diameter of Outer Spring in.

Valve Stem Seals Included: Yes. Valve Stem Seal Style:Positive stop.

Rocker Arm Studs Included:Yes. Rocker Arm Nut Thread Size:7/16 in. Guideplate Pushrod Size:3/8 in. Spark plug is closer to center of bore and will interfere with high-dome pistons designed for open chamber heads. Use pistons designed for these heads if a large dome is desired. WARNING: This product can expose you to Lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm.