Edelbrock 60519 Performer RPM Olds Cylinder Head- $859.50
Designed for high-performance non-emission 1965-76 Olds 400, 425 and 455 c.i.d. V8s
Performer RPM Olds-Complete Assembly
Performer RPM Olds
- Designed for high-performance non-emission 1965-76 Olds 400, 425 and 455 c.i.d. V8s
- Dual quench areas for a more efficient burn, outstanding hp 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 guideplate for increased valvetrain stability
- #60517 is not port matched or bowl blended and is NHRA-accepted for Stock and Super Stock (except 1968-1969 W-30)
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 | 18° |
| Exhaust port location | Stock |
| Spark plug fitment | 14mm x 3/4 reach, gasket seat |
| Made In | USA |
Technical Notes: 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" counterbore. 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).
Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench
| #60519 | |||||||
| Valve Lift | .100" | .200" | .300" | .400" | .500" | .600" | .700" |
| Intake | 67-67 | 131-131 | 195-195 | 245-247 | 278-256 | 268-259 | - |
| Exhaust | 54 | 102 | 137 | 163 | 179 | 188 | - |
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