Edelbrock 60517 Cylinder Head; Nhra S/S Legal Performer Rpm Olds (Bare)
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.Heart 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.
COMBINED CANCER/BIRTH DEFECT
WARNING This product can expose you to chemicals including Cadmium which is known to the State of California to cause cancer on birth defects or other reproductive harm. For more information, visit www.p65warnings.ca.gov
More Information Base Part Number 399777 Eck OEM Number 60517 Brand Edelbrock Availability Ships Direct From Manufacturer
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