SKU: SKU: EDE61515
The Edelbrock #61515 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. Performer RPM CNC cylinder head with 72cc chambers are best for higher compression engines. The Edelbrock #61515 Performer RPM CNC cylinder head is patterned after the same port flange configuration as the 1969-1970 Ram-Air IV Pontiac Cylinder Head.
Edelbrock part #61515 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.
| CNC Ported | Yes |
| Deck Thickness | 0.625 IN |
| Intake Valve Diameter | 2.11 IN |
| Camshaft Type | Hydraulic Roller |
| Valve Spring Maximum Lift | 0.575 IN |
| Guide Material | Manganese Bronze |
| Valve Stem Diameter | 0.3438 IN |
| Push Rod Diameter | (Suggested) 0.3125 IN |
| Valve Angle | 14 DD |
| 30 | No |
| 8788 | Yes |
| 10024 | Yes |
| 8789 | Yes |
| 10025 | Yes |
| 10252 | Chromoly Steel |
| 10583 | No |
| 10261 | No |
| 10671 | Yes |
| 10 | Aluminum |
| 306 | Yes |
| 6627 | 215 CCM |
| 6635 | 31-6152 |
| 6634 | Yes |
| 6636 | Chromoly Steel |
| 3390 | Performance |
| 6621 | 10.25 IN |
| 10582 | No |
| 6626 | 72 CCM |
| 9799 | Yes |
| Valve Lock Material | Steel |
| Guide Plate Material | Hardened Steel |
| Quantity | Sold Individually |
| Exhaust Valve Diameter | 1.66 IN |
| EGR Port | No |
| Exhaust Runner Volume | 175 CCM |
| Family | Performer RPM |
| Construction Type | Complete |
| Rocker Arm Stud Diameter | 0.4375 IN |
| Exhaust Port Location | Standard |
| Series | Performer RPM |
| Seat Angle | Exhaust 45 deg/Intake 45 DD |
| Horsepower | 450-650 HJ |
| Seat Material | Ductile Iron |
| Retainer Included | Yes |
| Valve Spring Diameter | 1.46 IN |
California Prop 65 Warning: 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.