Description
The Edelbrock PN: 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 PN: 61525 Performer RPM CNC cylinder head is patterned after the same port flange configuration as the 1969-1970 Ram-Air IV Pontiac Cylinder Head.
Pontiac:-:326 (5.3L)/350 (5.7L)/389 (6.4L)/400 (6.6L)/421 (6.9L)/428 (7.0L)/455 (7.4)
CYL HEAD PONTIAC PERF RPM CNC CHAMBER 87cc COMPLETE SINGLE FOR HYD ROLLER CAM - Part number: EDL-61525 - for American Cars - delivery to the UK and the EU
Manufacturer part number: 61525 - CYL HEAD PONTIAC PERF RPM CNC CHAMBER 87cc COMPLETE SINGLE FOR HYD ROLLER CAM engine-cylinder-head
Data sheet
- Type
- Complete
- Engine Make/Size
- Pontiac 326-455
- Emission
- N/A
- Finish
- Cast Aluminum
- Material
- Aluminum
- Usage
- Street/Strip
- Cylinder Head Type
- Standard
- Grade Type
- Performance
- Preparation
- Bolt On (Not Required)
- Camshaft Type
- Hydraulic Roller
- Family
- Performer RPM
- Series
- Performer RPM
- CNC Ported
- Yes
- Combustion Chamber Volume
- 87 CCM
- Construction Type
- Complete
- Deck Thickness
- 0.625 IN
- EGR Port
- Yes
- Guide Plates Included
- Yes
- Quantity
- Sold Individually
- Retainer Included
- Yes
- Valve Included
- Yes
- Valve Springs Included
- Yes
- Head Casting Number
- N/A
- Horsepower
- 450-600 HJ
- Exhaust Port Location
- Standard
- Exhaust Runner Volume
- 175 CCM
- Exhaust Valve Diameter
- 1.66 IN
- Guide Material
- Manganese Bronze
- Guide Plate Material
- Hardened Steel
- Intake Runner Volume
- 215 CCM
- Intake Valve Diameter
- 2.11 IN
- Push Rod Diameter
- (Suggested) 0.3125 IN
- Rocker Stud Diameter
- 0.4375 IN
- Seat Angle
- Exhaust 45 deg/Intake 45 DD
- Seat Material
- Ductile Iron
- Valve Angle
- 14 DD
- Valve Spring Diameter
- 1.46 IN
- Valve Spring Maximum Lift
- 0.575 IN
- Valve Stem Diameter
- 0.3438 IN
Package dimensions
Width: 11.50 inch
Height: 8.50 inch
Depth: 26.00 inch
Weight: 36.10 lb