Edelbrock - 60455
Cylinder Head - Performer RPM - Assembled - 2.190 / 1.880 in Valve - 290 cc Intake - 110 cc Chamber - 1.550 in Springs - Aluminum - Big Block Chevy - Each
The Edelbrock #60455 Performer RPM O-Port cylinder heads are designed for BB Chevy engines. The Edelbrock #60455 Performer RPM heads are perfect for street performance, daily drivers and muscle cars where more performance is needed.
Cylinder Head Specifications: Combustion chamber volume: 110cc; Intake runner volume: 290cc; Exhaust runner volume: 110cc; Intake valve diameter: 2.19"; Exhaust valve diameter: 1.88"; Valve stem diameter: 11/32"; Valve guides: Manganese bronze; Deck thickness: 9/16"; Valve spring diameter: 1.55"; Valve spring maximum lift: .700"; Rocker stud: 7/16"; Guideplate: Hardened steel; Pushrod diameter: 3/8"; Valve angle: 26°; Exhaust port location: Stock; Spark plug fitment: 14mm x 3/4 reach, gasket seat. INSTALLATION NOTE: Match with Edelbrock head gasket sets. Bare heads will have valve guides and seats installed, but will require final sizing and a valve job to match the valves you will be using. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat.
- Out-of-the-Box Bolt-On Performance
- 54cc Combustion Chamber Improves Performance
- Specially Designed Oval Ports
- Increased Flow And Velocity
- Highly Efficient Semi-Open Style Chamber
- High-Velocity Short Intake Ports
