Cylinder Head, E-Street, Aluminum, Assembled, 64cc Chamber, 300-400 Horsepower, 185cc Intake Runner, Chevy, 302/327/350/400, Pair

Designed for use with hydraulic camshafts less than .550 in. lift. Requires use of hardened pushrods. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat

These all-new Edelbrock E-Street cylinder heads are just right for the street performance crowd. Manufactured in the USA by Edelbrock, these E-Street cylinder heads feature A356 aluminum castings that are heat-treated to T-6 specs for superior casting strength and quality. Their modern combustion chamber design helps to improve the combustion process and their larger-than-stock intake and exhaust ports help to move more air through your engine. These features improve an engine's efficiency, resulting in more horsepower and torque and improved mileage potential.

All Edelbrock E-Street cylinder heads are assembled with manganese bronze valve guides, powder metal interlocking valve seats, stainless steel one-piece valves with hardened tips, damper springs, 3/8 in. screw-in studs, and guideplates. Edelbrock E-Street cylinder heads are ideal for street performance engines (300 hp to 400 hp)operating in the idle to 5,500 rpm range.