Edelbrock Performer RPM 70cc Straight Plug Hydraulic Roller Cylinder Head SBC

Upgrade your Small Block Chevy with this Edelbrock Performer RPM cylinder head, engineered to deliver strong street performance and reliable power. Featuring a 70cc combustion chamber and 195cc intake runners, this head provides excellent airflow and throttle response across a wide 1,500 to 6,500 RPM range, making it ideal for street rods, muscle cars, and daily driven performance builds.

Features and Benefits:
- Designed for 1955-1986 Small Block Chevy engines
- 70cc combustion chamber supports strong street performance
- Straight spark plug configuration for traditional fitment
- Compatible with hydraulic roller and mechanical flat tappet camshafts
- Broad 1,500-6,500 RPM operating range
- 195cc intake runners improve airflow and throttle response
- Aluminum construction for durability and heat dissipation

This complete cylinder head includes premium valves and springs compatible with both hydraulic roller and mechanical flat tappet camshaft applications. The straight spark plug configuration offers a traditional fitment option, while the aluminum construction helps reduce weight and improve heat dissipation. Designed for 1955-1986 SBC engines, this head is a proven upgrade for builders looking to maximize performance and drivability.

Specifications:
- CNC Ported: No
- Combustion Chamber Volume: 70.0cc
- Deck Height: 9.025"
- Deck Thickness: 0.562"
- Exhaust Valve Diameter: 1.600"
- Guide Plates Included: Yes
- Intake Runner Volume: 195.0cc
- Intake Valve Diameter: 2.020"
- Material: Aluminum
- Push Rod Diameter: 0.312"
- Rocker Stud Diameter: 0.375"
- Valve Angle: 23 degrees
- Valve Spring Diameter: 1.460"
- Valve Spring Maximum Lift: 0.575"
- Valve Stem Diameter: 0.341"

Vehicle Fitment:
- 1955-1986 Small Block Chevy Engines (327 and 350 typical applications)

Please Note: Requires .100" longer pushrods when using stock rockers (Edelbrock #9629 recommended). Not for engines under 4" bore unless cam lift is under .450". Verify piston-to-valve clearance, spring pressure and all valvetrain geometry prior to installation. Use Champion RC12YC plugs (14mm x 3/4" flat gasket).