Edelbrock 5089 Small-Block Chevy E-Street Cylinder Heads 64cc Made in USA

  

Fits Small Block Chevy V8's using Pre 1986 Intake Manifold. Combustion Chamber Volume (cc): 64. Intake Runner Volume (cc): 185cc. Exhaust Runner Volume (cc): 60cc. Camshaft Style: Hydraulic flat tappet.

Outside Diameter of Outer Spring in. Number of Springs Per Valve: Single.

Valve Stem Seals Included: Yes. Valve Stem Seal Style: Umbrella.

Rocker Arm Studs Included: Yes. Rocker Arm Nut Thread Size: 3/8 in. Rocker Arm Nuts Included: No.

Guideplate Pushrod Size: 5/16 in. Valve Cover Mounting Style: Perimeter bolt. Accessory Bolt Holes Drilled: Yes.

Valve Guide Material: Manganese bronze. Valve Seat Machine Style: 3-angle. Valve Seat Material: Powdered metal.

Are you looking for a set of entry-level street performance heads for your modern street rod, muscle car, or truck? Edelbrock E-Street cylinder heads are just the ticket. These 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, and stainless steel one-piece valves with hardened valve tips. Edelbrock E-Street cylinder heads are ideal for entry level street performance engines.