Edelbrock 61525 RPM CNC Pontiac Cylinder Head 87cc Hydraulic Roller Camshaft
Select your vehicle to confirm fit. Add to Cart unlocks once it fits.
Product Availability Request
Fill the form and our team will contact you.
Edelbrock part #61525 Performer RPM CNC Cylinder Heads have the same specifications as our popular Performer RPM cylinder heads for 1962-79 389-455 c.i.d. Pontiac engines, but feature a CNC machined combustion chamber.
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.
Specifications
| Exhaust Runner Volume | 175 CCM |
| Family | Performer RPM |
| Construction Type | Complete |
| Push Rod Diameter | (Suggested) 0.3125 IN |
| Valve Stem Diameter | 0.3438 IN |
| Rocker Arm Stud Diameter | 0.4375 IN |
| Valve Spring Maximum Lift | 0.575 IN |
| Deck Thickness | 0.625 IN |
| Valve Spring Diameter | 1.46 IN |
| Exhaust Valve Diameter | 1.66 IN |
| Deck Height | 10.25 IN |
| Valve Angle | 14 DD |
| Intake Valve Diameter | 2.11 IN |
| Intake Runner Volume | 215 CCM |
| Head Casting Number | 31-6152 |
| Horsepower | 450-600 HJ |
| Combustion Chamber Volume | 87 CCM |
| Material | Aluminum |
| Valve Lock Material | Chromoly Steel |
| Guide Plate Material | Chromoly Steel |
| Seat Material | Ductile Iron |
| Seat Angle | Exhaust 45 deg/Intake 45 DD |
| Guide Plate Material | Hardened Steel |
| Camshaft Type | Hydraulic Roller |
| Guide Material | Manganese Bronze |
| Rocker Arms Included | No |
| Cylinder Head Gasket Included | No |
| Valve Cover Gasket Included | No |
| Mounting Hardware Included | No |
| Grade Type | Performance |
| Series | Performer RPM |
| Quantity | Sold Individually |
| Exhaust Port Location | Standard |
| Valve Lock Material | Steel |
| RGL | 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. |
| Valve Spring Retainers Included | Yes |
| Valve Locks Included | Yes |
| Rocker Arm Studs/Bolts Included | Yes |
| Assembled | Yes |
| Guide Plates Included | Yes |
| Valve Springs Included | Yes |
| Valve Seals Included | Yes |
| Valves Included | Yes |
| CNC Ported | Yes |
| EGR Port | Yes |
| Retainer Included | Yes |
⚠️ California Proposition 65 Warning
California Residents: This product can expose you to chemicals which are known to the State of California to cause cancer or other reproductive harm. Please visit www.p65warnings.ca.gov for more information.
Warranty: 12 Months
Shipping Information
Free shipping is available for eligible orders.
Shipping: Free to the USA.
Orders are processed during normal business days. Delivery dates may vary by carrier and destination.
Owner Reviews
Questions & Answers
Our techs answer fitment questions, usually within 2 hours. Owners chime in too.
No questions yet. Here's what shoppers usually ask. Tap one and our techs will answer.
Ask a Question
Write a review
Share your experience with this part. Reviews are checked before they go live.
Guaranteed
Shipping
Returns
Support
Frequently Paired With
