Edelbrock 60989 - Edelbrock SB-Chevy Performer RPM E-TEC Aluminum Cylinder Heads

Edelbrock 60989 - Edelbrock SB-Chevy Performer RPM E-TEC Aluminum Cylinder Heads Details
Performer RPM E-TEC 200 Aluminum Cylinder Heads
19 more HP and 15 ft.-lbs. more torque than ''fast burn'' cylinder heads. Feature 200cc rectangular intake ports and 78cc exhaust ports. They outflow the ''fast burn'' aluminum heads by 10% on the intake, 17% on the exhaust, making power up to 7000+ rpm. 64cc combustion chambers produce approximately 10.2:1 compression when used in 350 with flat top pistons. Includes 2.02/1.60'' valves. Tech Tip: To gain more spark plug clearance, Edelbrock recommends using Champion RC Series plugs such as the RC12YC (P/N 192-49776). They are 0.230'' shorter than a conventional spark plug and have a 5/8'' hex for easier access.
Engineered to greatly increase performance and efficiency, E-TEC heads fit SB-Chevy 302-400ci engines with ''Vortec'' style intake manifolds. These powerful heads incorporate Edelbrock's high-quench combustion chamber which promotes a more uniform atomization of the air/fuel mixture for more power. Spark plugs have been positioned closer to the center of the cylinder for more efficient combustion. Swirl-polished stainless steel valves provide maximum flow. They accept center bolt or standard valve covers, work with most stock exhaust manifolds and have intake and exhaust ports that are .200'' taller than typical SB-Chevy heads. Match these heads with an Edelbrock Vortec intake manifold for the best results. Performer RPM E-TEC 170 Performer RPM E-TEC 200

