Edelbrock Performer RPM 454 Rectangle Port Cylinder Heads - Single - Complete (ED60559)

ED60559 - PERFORMER RPM 454-R COMPLETE

BB Chevy, 118cc chambers, great torque and horsepower up to 6500 rpm

Part Number: ED60559

Performer RPM heads are perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-pants performance is needed. These heads give great torque and horsepower up to 6500 rpm.

Designed for street/high-performance big-blocks operating from 2500-7000 rpm.
Specially designed ports for increased flow and velocity over standard big-block heads.
Highly-efficient 118cc open-style combustion chamber.
High-velocity 315cc long/300cc short intake ports.
Smaller-than-stock 11/32" valve stems promote excellent flow and lighter valve weight.
Combustion chamber volume:
118cc
Intake runner volume:
315cc
Exhaust runner volume:
110cc
Intake valve diameter:
2.19"

Exhaust valve diameter:
1.88"

Valve stem diameter:
11/32"
Valve guides:
Manganese bronze
In:
USA
Deck thickness: 9/16"

Valve spring diameter:
1.55"

Valve spring maximum lift:
.700"

Rocker stud:
7/16"
Guide plate:
Hardened Steel

Pushrod diameter:
3/8"

Valve Angle:
26°
Exhaust port location:
Stock

Spark plug fitment:
14mm x 3/4" reach, gasket seat

Made