SKU: SKU: EDE60539
The Edelbrock #60539 Performer RPM CNC Bare 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 #60539 Performer RPM CNC cylinder head is patterned after the same port flange configuration as the 1969-1970 Ram-Air IV Pontiac Cylinder Head.
The Edelbrock #60539 Performer RPM CNC Bare 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.
| Retainer Included | No |
| Guide Material | Manganese Bronze |
| CNC Ported | Yes |
| 8788 | No |
| 10024 | No |
| 30 | No |
| 8789 | Yes |
| 10025 | No |
| 10583 | No |
| 10261 | No |
| 10671 | Yes |
| 10582 | No |
| 10 | Aluminum |
| 6627 | 215 CCM |
| 6635 | 6152F |
| 6634 | Yes |
| 6636 | Chromoly Steel |
| 3390 | Performance |
| 6621 | 10.25 IN |
| 6626 | 72 CCM |
| 306 | No |
| 9799 | No |
| Guide Plate Material | Hardened Steel |
| Seat Material | Ductile Iron |
| Deck Thickness | 0.625 IN |
| Seat Angle | Exhaust 45 deg/Intake 45 DD |
| Exhaust Runner Volume | 175 CCM |
| Family | Performer RPM |
| EGR Port | No |
| Quantity | Sold Individually |
| Valve Angle | 14 DD |
| Construction Type | Bare |
| Exhaust Port Location | Standard |
| Series | Performer RPM |
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.