Edelbrock - 61025
Cylinder Head - Performer RPM - Assembled - 2.150 / 1.680 in Valve - 218 cc Intake - 77 cc Chamber - 1.460 in Springs - Aluminum - Oldsmobile V8 - Each
The Edelbrock #61025 Performer RPM Cylinder Head for 1965-76 Oldsmobile 400, 425 and 455 CID V8 engines with hydraulic roller cam is a perfect performance upgrade for big-block Olds-powered street machines and muscle cars. This aluminum cylinder head supersedes the 60515 Olds head and features a redesigned 77cc combustion chamber, larger intake valves and refined bowl blending for improved flow. The #61025 Performer RPM head has improved accommodation for a factory-style mechanical fuel pump with spark plug locations moved slightly towards the exhaust valve for optimized combustion. Intake and exhaust ports have been improved over previous designs, and extra material has been added above the intake port for head work. Performer RPM #61025 heads are cast and machined by Edelbrock in the USA and comes complete with the highest quality intake and exhaust valves and valve springs.
- Performer Series RPM Cylinder Head
Quantity: Sold Individually
Horsepower: 450-600
Seat Material: Ductile Iron
Retainer Included: Yes
Valve Included: Yes
Guide Plate Material: Hardened Steel
Exhaust Port Location: Standard
Series: Performer RPM
Exhaust Valve Diameter: 1.680
Valve Springs Included: Yes
Camshaft Type: Hydraulic Roller
Grade Type: Performance
Head Casting Number: N/A
Guide Material: Manganese Bronze
Family: Performer RPM
Construction Type: Complete
Combustion Chamber Volume: 77
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.
Intake Valve Diameter: 2.150
Valve Spring Diameter: 1.105
Valve Spring Maximum Lift: 0.600
EGR Port: No
Exhaust Runner Volume: 128
Valve Stem Diameter: 0.3438
Push Rod Diameter: (Suggested) 0.375
Deck Thickness: 0.625
Intake Runner Volume: 218
Valve Angle: 6
Guide Plates Included: Yes
Seat Angle: Exhaust 60 deg/Intake 60
CNC Ported: No
Material: Aluminum
Rocker Arm Stud Diameter: 0.4375
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