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The Edelbrock #61555 Performer RPM Marine-Duty cylinder head is designed for use with Rectangular Port Big-Block Chevy Marine applications. The Edelbrock #61555 Performer RPM head is perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-pants performance is needed. This cylinder head delivers great throttle response and power from 1500 to 6500 rpm. They also feature the highest quality intake and exhaust valves and valve springs. For use on pre-pollution controlled vehicles only.
Edelbrock Engine Cylinder Head 61555
Specifications:
| Valve Stem Diameter | 0.3438 |
| Seat Material | Ductile Iron |
| Valve Spring Maximum Lift | 0.650 |
| Valve Angle | 26 |
| Guide Plates Included | Yes |
| Material | Aluminum |
| Seat Angle | Exhaust 45 deg/Intake 45 |
| Flange Type | Rectangle Intake |
| Exhaust Runner Volume | 110 |
| Series | Performer RPM |
| Family | Performer RPM |
| Head Casting Number | N/A |
| Guide Material | Manganese Bronze |
| 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. |
| Construction Type | Complete |
| Intake Valve Diameter | 2.25 |
| Exhaust Valve Diameter | 1.89 |
| Valve Spring Diameter | 1.50 |
| EGR Port | No |
| Valve Springs Included | Yes |
| Exhaust Port Location | Standard |
| Push Rod Diameter | (Suggested) 0.375 |
| Rocker Arm Stud Diameter | 0.4375 |
| Quantity | Sold Individually |
| Retainer Included | Yes |
| Valve Included | Yes |
| Intake Runner Volume | 315 |
| Guide Plate Material | Hardened Steel |
| CNC Ported | No |
| Camshaft Type | Hydraulic Roller |
| Horsepower | 500-600 |
| Deck Thickness | 0.5625 |
| Combustion Chamber Volume | 118 |
| Grade Type | Performance |
| Description_ABR | Cyl. Head |
| Description_INV | Edelbrock BBC Cylinder Head |
| Description_LAB | RPM Marine Big-Block Chevy Cylinder Head Hydraulic Roller Cam |
| Description_ASM | Chevrolet:Big-Block Mark IV:396 (6.6L)/402 (6.6L)/427 (7.0L)/454 (7.4L)/502 (8.2L) |
| Description_EXT | Edelbrock part #61555 Performer RPM Marine-Duty cylinder heads are designed for use with Rectangular Port Big-Block Chevy Marine applications. |
| Description_MKT | The Edelbrock #61555 Performer RPM Marine-Duty cylinder head is designed for use with Rectangular Port Big-Block Chevy Marine applications. The Edelbrock #61555 Performer RPM head is perfect for street performance, daily drivers, street rods and muscle cars where seat-of-the-pants performance is needed. This cylinder head delivers great throttle response and power from 1500 to 6500 rpm. They also feature the highest quality intake and exhaust valves and valve springs. For use on pre-pollution controlled vehicles only. |
| Description_TRA | EQUIPPED WITH SPRINGS FOR USE IN HYDRAULIC ROLLER CAMSHAFT APPLICATIONS |
| Description_TRA | Heavy-duty, 1.89" Inconel exhaust valves provide added durability for marine applications |
| Description_TRA | Hard anodized black to protect the aluminum cylinder heads in the harsh marine environment |
| Description_TRA | Sold with valves only to allow for valve spring choices |
| Description_TRA | Match with an Edelbrock Performer RPM manifold, Performer Series 750 cfm marine carb and Performer RPM cam for proven performance |
| Description_TRA | Smaller-than-stock 11/32" valve stems promote excellent flow and lighter valve weight |
| Description_DEF | Engine Cylinder Head |