Edelbrock Cylinder Head E-Tec-200 Small Block Chevy 64CC With Hydraulic Roller Springs

Edelbrock relocated the spark plugs closer to the center of the Edelbrock 64cc Small Block Chevy E-Tec-200 Cylinder Head for greater combustion efficiency. The increased efficiency is a result of improved airflow from the LT1-style raised runner intake port. Combined with the featured Hydraulic Roller Springs, this assembly promotes 20 percent more exhaust flow. 

Features and Benefits:
- Adjustable Rocker Stud and Guide Plate Set up
- Accommodates Self-Aligning Rocker Arms
- For 302, 327, 350 and 400 c.i.d Small Block Chevy Engines
- LT1-Style Raised Runner Intake Port for Increased Airflow
- Repositions Spark Plug for Combustion Promotion
- E-Tec 200 Series is Dual-Drilled

A brand new, high-quench design incorporates a 64cc combustion chamber for more uniform atomization of the air/fuel mixture. Each head includes an adjustable rocker stud and guide plate set up for use with adjustable rockers or washers to properly position the stud height to accommodate factory-style self-aligning rocker arms. 

*Accepts 1987-1995 center bolt and 1986-prior perimeter flange mount valve covers and most stock exhaust manifolds.

*64cc combustion chambers produce 10.2:1 compression with flat-top pistons in 350ci engines.

Specifications:
- Combustion Chamber Volume: 64.0 cc
- Deck Height: 9.025"
- Deck Thickness: 0.562"
- Exhaust Valve Diameter: 1.600
- Intake Runner Volume: 200.0 cc
- Intake Valve Diameter: 2.020 in
- Push Rod Diameter: 0.312"
- Rocker Stud Diameter: 0.375"
- Valve Angle: 23 degree
- Valve Spring Diameter: 1.460"
- Valve Spring Maximum Lift: 0.575"
- Valve Stem Diameter: 0.341"

Additional Notes:    
- Included Hydraulic Roller Springs are for use with Mechanical Tappet and Hydraulic Roller Camshaft applications.
- Stock rockers on small-block Chevy heads with .100" longer than stock pushrods are required.
- Use Head Bolt Kits for easy installation. S/B Chevy heads may not be used on engines with less than 4" bore (262, 265, 283, 305, 307 c.i.d.) except with cams having less than .450" valve lift.

Tech Tip: Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with a flat gasket seat.