| Street Legal & Street High-Performance NHRA Accepted Heads |
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PERFORMER RPM FE (170cc Intake Ports)
NHRA Legal for 390-427-428 Ford FE Engines
- Direct bolt-on heads for 1961-76 390-427-428 Ford Stock and Super Stock racers
- No port profiling or bowl blending of ports
- Engraved with the NHRA Logo on both ends
- #60087 is sized for 2.09"/1.66" valves for 427 low riser applications
- For 427 medium riser applications #60087 must be prepared for 2.19"/1.73" valves
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| PERFORMER RPM FE for 390 (NHRA-accepted for Stock and Super Stock) |
| Chamber Size |
Intake Port Size |
Valve Sizes (in/ex) |
Bare (single) |
Complete (single) |
| 72cc |
170cc |
2.03"/1.55 |
#60057* |
N/A |
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| PERFORMER RPM FE for 428 (NHRA-accepted for Stock and Super Stock) |
| Chamber Size |
Intake Port Size |
Valve Sizes (in/ex) |
Bare (single) |
Complete (single) |
| 72cc |
170cc |
2.09"/1.66" |
#60058* |
N/A |
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| PERFORMER RPM FE for 427 (NHRA-accepted for Stock and Super Stock) |
| Chamber Size |
Intake Port Size |
Valve Sizes (in/ex) |
Bare (single) |
Complete (single) |
| 76cc |
170cc |
2.09"/1.66" |
#60087* |
N/A |
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PERFORMER RPM OLDS (188cc Intake Ports)
(NHRA-accepted for Stock and Super Stock)
- 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 & 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
- No port profiling or bowl blending of ports
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| PERFORMER RPM OLDS |
| Chamber Size |
Intake Port Size |
Valve Sizes (in/ex) |
Bare (single) |
Complete (single) |
| 77cc |
188cc |
2.072"/1.680" |
#60517* |
N/A |
 Notes: Recommended intake gasket: Edelbrock #7284
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).
See Cylinder Heads Specs for information. |
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PERFORMER RPM PONTIAC (215cc Intake Ports)
(NHRA-accepted for Stock & Super Stock)
- Designed for outstanding performance gains in 1965-79 389-455 c.i.d. Pontiac engines
- Patterned after the 1969-70 Ram Air IV Pontiac cylinder head
- #60587 is not port matched or bowl blended and is NHRA-accepted for Stock and Super Stock
- No port profiling or bowl blending of ports
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| PERFORMER RPM PONTIAC (NHRA-accepted for Stock & Super Stock) |
| Chamber Size |
Intake Port Size |
Valve Sizes (in/ex) |
Bare (single) |
Complete (single) |
| 72cc |
215cc |
2.11"/1.66"(B) |
#60587* |
N/A |
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AMC
