SKU: SKU: EDE60509
The Edelbrock #60509 Performer RPM cylinder head is designed for outstanding performance gains in 1962-79 389-455 c.i.d. Pontiac engines. They are patterned after the 1969-70 Ram Air IV Pontiac cylinder head. The Edelbrock #60509 Performer RPM head with the 72cc combustion chamber are for higher compression engines. Performer RPM #60509 is semi-machined and must be finished by a professional cylinder head porter. They include valve guides and seats installed with no intake pushrod holes.
The Edelbrock #60509 Performer RPM cylinder heads are designed for outstanding performance gains in 1962-79 389-455 c.i.d. Pontiac engines. They are patterned after the 1969-70 Ram Air IV Pontiac cylinder head.
| Exhaust Valve Diameter | (Suggested) 1.46 in x 1.40 IN |
| Exhaust Port Entry | 1.46 in x 1.40 IN |
| 8788 | No |
| 10024 | No |
| 8789 | No |
| 10025 | No |
| 10583 | No |
| 10261 | No |
| 10671 | No |
| 30 | No |
| 10 | Aluminum |
| 6627 | 215 CCM |
| 6635 | 31-6056 |
| 6634 | No |
| 3390 | Performance |
| 6621 | 10.25 IN |
| 10582 | No |
| 6626 | 72 CCM |
| 306 | No |
| 9799 | No |
| Intake Valve Pierce Points (X,Y)(C) | 0.880 in, 0.000 IN |
| Specialty | Hot Isostatic Pressing (HIP) Processing |
| Valve Angle | 14 DD |
| Seat Angle | Exhaust 45 deg/Intake 45 DD |
| Exhaust Valve Pierce Points (X,Y)(C) | 1.150 in, 0.000 IN |
| Valve Seats Included | Yes |
| Quantity | Sold Individually |
| Series | Pro-Port |
| Construction Type | Pro-Port Raw |
| EGR Port | No |
| Intake Port Entry | 1.10 in x 2.02 IN |
| Family | Performer RPM |
| Seat Material | Ductile Iron |
| Deck Thickness | 0.625 IN |
| Valve Guides Included | Yes |
| Valve Spacing | 2.030 IN |
| Intake Valve Diameter | (Suggested) 2.11 IN |
| Retainer Included | No |
| Combustion Chamber Volume | Possible 72 CCM |
| CNC Ported | No |
| Guide Material | Manganese Bronze |
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.