Menu

Select your vehicle

to verify compatibility

Your Vehicle:
Change Vehicle Cancel Change
Please select your vehicle to verify compatibility.

NHRA Legal Big-Block Oldsmobile Cylinder Head

$1,127.32
Add to Wish List
In stock
SKU
60517
BENEFITS OF BUYING DIRECT FROM EDELBROCK
Fast Shipping Fast Shipping
Tech support Tech Support
Easy returns Easy Returns
High-quality High-quality
Fast Shipping
Fast shipping
Edelbrock prides themselves in ensuring all products are shipped as quickly as possible.
Shipping policy
Tech support
Easy returns
Edelbrock offers a quick and painless return process on all new and unused products.
Return policy
Easy returns
Tech support
Edelbrock Tech Support is second to none. We can answer any of your tech inquiries!
Tech support
High-quality
High quality
Edelbrock core products are made in the USA offering unsurpassed quality and performance.
About Edelbrock

Reviews

No reviews added
Write Your Own Review
You're reviewing:NHRA Legal Big-Block Oldsmobile Cylinder Head
Your Rating

Details

The Edelbrock #60517 Performer RPM NHRA Stock/Super Stock cylinder heads are designed for 1965-76 Oldsmobile 400, 425 &455 c.i.d. V8 applications. The Edelbrock #60517 Performer RPM heads are perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-pants performance is needed. These cylinder heads deliver great throttle response and power from 1500 to 6500 rpm. They also feature the highest quality intake and exhaust valves and valve springs. For use on pre-pollution controlled vehicles only.

Documents & Installation Notes

Specs

Availability Available
Application Universal
GTIN 00085347605170
Availability Note Available to Order
Warranty 12 Months
Emissions Code
Hazardous Materials Warning 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 www.P65warnings.ca.gov.
Installation Notes
  • Bare heads will have valve guides and seats installed, but will require final sizing and a valve job to match the valves you will be using.
  • 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).
  • Cylinder Heads 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 an ARP 7/16" screw-in stud and 3/8" pushrod-slot guide plate 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.
CNC Ported No
Combustion Chamber Volume 77.0 cc
Deck Height 9.8 in
Deck Thickness 0.625 in
Guide Plates Included Yes
Intake Runner Volume 188.0 cc
Material Aluminum
Push Rod Diameter 0.375 in
Valve Angle 6 deg