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#32561525
Edelbrock 61525 Performer RPM CNC Cylinder Head, Pontiac 455
- The CNC machined chamber results in a consistent and precise chamber for improved flow performance.
- Performer RPM CNC cylinder head is available in two chamber sizes.
- The 87cc chamber version is ideal for 9.5:1 engines and will deliver excellent street performance on low octane fuel.
$1,704.95
/each
Factory Shipped
Quantity
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Product Summary
Assembled Cylinder Head Style, Aluminum, Natural
- The CNC machined chamber results in a consistent and precise chamber for improved flow performance.
- Performer RPM CNC cylinder head is available in two chamber sizes.
- The 87cc chamber version is ideal for 9.5:1 engines and will deliver excellent street performance on low octane fuel.
- The Edelbrock #61525 Performer RPM CNC cylinder head is patterned after the same port flange configuration as the 1969-1970 Ram-Air IV Pontiac Cylinder Head.
Key Specs
| Cylinder Head Style | Assembled |
| Material Type | Aluminum |
| Finish | Natural |
| Combustion Chamber Volume | 87cc |
| Intake Runner Volume | 215cc |
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Return PolicyEdelbrock 61525 Details
Edelbrock 61525 Details
The Edelbrock #61525 Performer RPM CNC Cylinder Head has the same specifications as our popular Performer RPM cylinder head for 1962-79 389-455 c.i.d. Pontiac engines, but feature a CNC machined combustion chamber.
- The CNC machined chamber results in a consistent and precise chamber for improved flow performance.
- Performer RPM CNC cylinder head is available in two chamber sizes.
- The 87cc chamber version is ideal for 9.5:1 engines and will deliver excellent street performance on low octane fuel.
- The Edelbrock #61525 Performer RPM CNC cylinder head is patterned after the same port flange configuration as the 1969-1970 Ram-Air IV Pontiac Cylinder Head.
CARB Warning
For use on pre-1966 vehicles only
CARB Warning
For use on pre-1966 vehicles only
Edelbrock 61525 Specifications
Edelbrock 61525 Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 61525 |
| Brand | Edelbrock |
| Cylinder Head Style | Assembled |
| Material Type | Aluminum |
| Finish | Natural |
| Combustion Chamber Volume | 87cc |
| Intake Runner Volume | 215cc |
| GENERAL | |
| Exhaust Runner Volume | 175cc |
| Combustion Chamber Volume Range | 80cc - 89cc |
| Intake Runner Volume Range | 210cc - 219cc |
| Exhaust Runner Volume Range | 170cc - 179cc |
| CNC-Machined Runners | No |
| CNC-Machined Combustion Chamber | Yes |
| Spark Plug Style | Straight |
| Intake Port Location | Standard |
| Exhaust Port Shape | Ram Air IV |
| Exhaust Port Location | Standard |
| Intake Valve Diameter | 2.11" |
| Intake Valves Included | Yes |
| Intake Valve Angle | 14 ° |
| Exhaust Valve Diameter | 1.66" |
| Exhaust Valves Included | Yes |
| Exhaust Valve Angle | 14 ° |
| Valve Spring Included | Yes |
| Spring Diameter | 1.46" |
| Damper Spring Included | Yes |
| Number of Springs Per Valve | Dual |
| Maximum Lift | 0.575" |
| Machined for O-Ring | No |
| Valve Seats Machined | Yes |
| Valve Stem Seals Included | Yes |
| Valve Guides Included | Yes |
| Valve Guide Material | Manganese Bronze |
| Locks Included | Yes |
| Retainers Included | Yes |
| Guideplates Included | Yes |
| Guideplate Pushrod Size | 0.312" |
| Rocker Arms Included | No |
| Rocker Arm Studs Included | Yes |
| Rocker Arm Nuts Included | No |
| Oiling Style | Through Pushrod |
| Heat Crossover | Yes |
| Steam Holes Drilled | No |
| Accessory Bolt Holes Drilled | Yes |
| Valve Cover Mounting Style | Perimeter Bolt |
| Notes | Equipped with springs for use in hydraulic roller camshafts applications. These heads require Ram Air IV (round port) style exhaust manifolds or headers and Edelbrock head bolt kit 8549. |
| Sold in Quantity | Each |
| GTIN Code | 085347615254 |
Ratings & Reviews
Ratings & Reviews
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Fitment
Fitment
1970-1976 Pontiac Bonneville
Pontiac V8 Large-Journal 455
Pontiac V8 Small-Journal 455 Ram Air V
1970-1976 Pontiac Catalina
Pontiac V8 Large-Journal 455
Pontiac V8 Small-Journal 455 Ram Air V
1970 Pontiac Executive
Pontiac V8 Large-Journal 455
Pontiac V8 Small-Journal 455 Ram Air V
1970-1976 Pontiac Firebird
Pontiac V8 Large-Journal 455
Pontiac V8 Small-Journal 455 Ram Air V
1973-1975 Pontiac Grand Am
Pontiac V8 Large-Journal 455
Pontiac V8 Small-Journal 455 Ram Air V
1975-1976 Pontiac Grand LeMans
Pontiac V8 Large-Journal 455
Pontiac V8 Small-Journal 455 Ram Air V
1970-1976 Pontiac Grand Prix
Pontiac V8 Large-Journal 455
Pontiac V8 Small-Journal 455 Ram Air V
1971-1976 Pontiac Grand Safari
Pontiac V8 Large-Journal 455
Pontiac V8 Small-Journal 455 Ram Air V
1971-1975 Pontiac Grandville
Pontiac V8 Large-Journal 455
Pontiac V8 Small-Journal 455 Ram Air V
1970-1973 Pontiac GTO
Pontiac V8 Large-Journal 455
Pontiac V8 Small-Journal 455 Ram Air V
1970-1974 Pontiac LeMans
Pontiac V8 Large-Journal 455
Pontiac V8 Small-Journal 455 Ram Air V
1976 Pontiac LeMans
Pontiac V8 Large-Journal 455
Pontiac V8 Small-Journal 455 Ram Air V
1970 Pontiac Tempest
Pontiac V8 Large-Journal 455
Pontiac V8 Small-Journal 455 Ram Air V

