Edelbrock | Engine Cylinder Head - Firebird / GTO 6.6L / 7.5L 1967-1979

Edelbrock - Engine Cylinder Head

Description

The Edelbrock #61525 Performer RPM CNC 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. The 87cc chamber version is ideal for 9.5:1 engines and will deliver excellent street performance on low octane fuel. The Edelbrock #61525 Performer RPM CNC cylinder head is patterned after the same port flange configuration as the 1969-1970 Ram-Air IV Pontiac Cylinder Head.

Characteristics

• Exhaust Runner Volume: 175
• Family: Performer RPM
• Construction Type: Complete
• Material: Aluminum
• Intake Runner Volume: 215
• Rocker Arm Stud Diameter: 0.4375 IN
• Guide Plates Included: Yes
• Grade Type: Performance
• Intake Valve Diameter: 2.11 IN
• Exhaust Valve Diameter: 1.66 IN
• EGR Port: Yes
• Quantity: Sold Individually
• Horsepower: 450-600
• Retainer Included: Yes
• Valve Included: Yes
• Valve Spring Diameter: 1.46 IN
• Valve Spring Maximum Lift: 0.575 IN
• Guide Plate Material: Hardened Steel
• CNC Ported: Yes
• Exhaust Port Location: Standard
• Series: Performer RPM
• Valve Stem Diameter: 0.3438 IN
• Push Rod Diameter: (Suggested) 0.3125 IN
• Deck Thickness: 0.625 IN
• Combustion Chamber Volume: 87
• Valve Angle: 14
• Seat Angle: Exhaust 45 deg/Intake 45
• 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.
• Camshaft Type: Hydraulic Roller
• Seat Material: Ductile Iron
• Head Casting Number: N/A
• Valve Springs Included: Yes
• Guide Material: Manganese Bronze

Note:

• Livraison GRATUITE / FREE Delivery