SKU: SKU: EDE61575
The Edelbrock #61575 Performer Pontiac Cylinder Head utilize a D-Port exhaust port configuration for use with standard D-port exhaust systems. They are designed for 1962-79 389, 400, 421, 428 and 455 c.i.d. V8 Pontiac engines with a 4.060" or larger bore. They feature optimized oil return passages for increased oil flow. The spark plug has been relocated closer to the exhaust valve for improved performance. This head is cast with extra thick port walls and a compact port size, making them ideal for CNC and hand porting. Complete cylinder head includes guide plates, rocker studs and high quality valvetrain for direct bolt-on application. Heat crossover is machined for 50-state emissions legal performance.
Edelbrock part #61575 Performer Pontiac D-Port Cylinder Heads are designed for 1962-79 389, 400, 421, 428 and 455 c.i.d. V8 Pontiac engines with a 4.060" or larger bore. They feature optimized oil return passages for increased oil flow.
| 6636 | Chromoly Steel |
| 3390 | Performance |
| 6621 | 10.25 IN |
| 10582 | No |
| 6626 | 87 CCM |
| 306 | Yes |
| 9799 | Yes |
| Valve Lock Material | Steel |
| Guide Plate Material | Hardened Steel |
| Construction Type | Complete |
| Rocker Arm Stud Diameter | 0.4375 IN |
| EGR Port | Yes |
| Quantity | Sold Individually |
| Retainer Included | Yes |
| Valve Spring Maximum Lift | 0.575 IN |
| Valve Angle | 14 DD |
| Series | Performer |
| Family | Performer |
| Valve Spring Diameter | 1.46 IN |
| CNC Ported | Yes |
| Exhaust Port Location | Standard |
| Seat Material | Ductile Iron |
| Deck Thickness | 0.625 IN |
| Intake Valve Diameter | 2.11 IN |
| Seat Angle | Exhaust 45 deg/Intake 45 DD |
| Guide Material | Manganese Bronze |
| Camshaft Type | Hydraulic Roller |
| Horsepower | 400-500 HJ |
| 8788 | Yes |
| 10024 | Yes |
| 8789 | Yes |
| 10025 | Yes |
| 10252 | Chromoly Steel |
| 10583 | No |
| 10261 | No |
| 10671 | Yes |
| 30 | No |
| 10 | Aluminum |
| 6627 | 204 CCM |
| 6635 | 31-6156 |
| 9040 | D-215-94 |
| Exhaust Runner Volume | 145 CCM |
| Valve Stem Diameter | 0.3438 IN |
| Push Rod Diameter | (Suggested) 0.3125 IN |
| Exhaust Valve Diameter | 1.66 IN |
| 6634 | Yes |
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.