Edelbrock 60515 Performer Series RPM Cylinder Head 60515
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Cylinder Head Specifications: Combustion chamber volume: 77cc; Intake runner volume: 188cc; Exhaust runner volume: 106cc; Intake valve diameter: 2.072″; Exhaust valve diameter: 1.68″; Valve stem diameter: 11/32″; Valve guides: Manganese bronze; Deck thickness: 5/8″; Valve spring diameter: 1.46″; Valve spring maximum lift: .575″; Rocker stud: 7/16″; Guideplate: Hardended steel; Pushrod diameter: 3/8″; Valve angle: 6�; Exhaust port location: Stock; Spark plug fitment: 14mm x 3/4 reach, gasket seat. INSTALLATION NOTE: Head bolt holes drilled for stock 7/16″ bolts, but can be easily modified for 1/2″ bolts or studs by drilling the 1/2″ counter bore. Aftermarket 7/16″-stud rocker arms and 3/8″ hardened pushrods required. Will fit 350-403 Olds with Edelbrock manifold #7111 only (port matching required). Match with Edelbrock head gasket sets. Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4″ reach with flat gasket seat. Deck thickness: 5/8″, rocker stud diameter: 7/16″, pushrod diameter: 3/8″ (width of slot in guide plate). Designed for high-performance non-emission 1965-76 Olds 400, 425 and 455 c.i.d. V8’s. eart shaped chamber for a more efficient burn, outstanding horsepower and torque. Valvetrain has been upgraded from the factory pedestal-mount system to a 7/16″ screw-in stud and 3/8″ pushrod-slot guideplate for increased valvetrain stability. 60517 is not port matched or bowl blended and is NHRA-accepted for Super Stock (except 1968-1969 W-30) only. Deck thickness: 5/8″, rocker stud diameter: 7/16″, pushrod diameter: 3/8″ (width of slot in guide plate). Head bolt holes drilled for stock 7/16″ bolts, but can be easily modified for 1/2″ bolts or studs by drilling the 1/2″ counter bore. Aftermarket 7/16″-stud rocker arms and 3/8″ hardened pushrods required. Replacement valve part numbers are for sets of 8.
|Dimensions||24.75 × 10.5 × 8.25 in|
|WARNING CA Proposition 65 Messag||
WARNING: This product can expose you to Lead; which is known to the State of California to cause cancer or birth defects or other reproductive harm. For more information; visit http://www.P65warnings.ca.gov.