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RPM Big-Block Oldsmobile Cylinder Head Hydraulic Roller Camshaft

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$1,253.50
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SKU
60515
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Details

The Edelbrock #60515 Performer RPM cylinder heads are designed for 1965-76 Oldsmobile 400, 425 &455 c.i.d. V8 applications. The Edelbrock #60515 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

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PDF-Installation Instructions

Specs

Availability Available
Ech Ival Dia 2.072 in
Grade Type Performance
Head Casting Number 31-6051
Guide Plate Material Hardened Steel
Application Application Specific
UPC 00085347605156
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
  • EQUIPPED WITH SPRINGS FOR USE IN HYDRAULIC ROLLER CAMSHAFT APPLICATIONS
  • 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
CNC Ported No
Combustion Chamber Volume 77.0 cc
Deck Height 9.8 in
Deck Thickness 0.625 in
Exhaust Valve Diameter 1.680 in
Guide Plates Included Yes
Intake Runner Volume 188.0 cc
Material Aluminum
Push Rod Diameter 0.375 in
Rocker Stud Diameter 0.437 in
Valve Angle 6 deg
Valve Spring Diameter 1.460 in
Valve Spring Maximum Lift 0.600 in
Valve Stem Diameter 0.341 in