Edelbrock Performer RPM Pontiac CNC Cylinder Heads 61515

Edelbrock Performer RPM Pontiac CNC cylinder heads have the same specifications as our popular Performer RPM cylinder heads for 1962-79 455 c.i.d. Pontiac engines, but feature a CNC-machined combustion chamber. The CNC-machined chambers result in a consistent and precise chamber for improved flow performance. Performer RPM CNC cylinder heads are 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. Performer RPM CNC cylinder heads with 72cc chambers are best for higher compression engines. Both are patterned after the same port flange configuration as the 1969-70 Ram-Air IV Pontiac cylinder heads.Brand: Edelbrock
Manufacturer's Part Number: 61515
Part Type: Cylinder Heads
Product Line: Edelbrock Performer RPM Pontiac CNC Cylinder Heads
HP Direct Part Number: EDL-61515
UPC: 085347615155
Combustion Chamber Volume (cc): 72
Intake Runner Volume (cc): 215cc
Exhaust Runner Volume (cc): 175cc
Cylinder Head Style: Assembled
Cylinder Head Material: Cast aluminum
Camshaft Style: Hydraulic roller
Intake Valve Diameter (in.): 2.110 in.
CNC-Machined Combustion Chamber: Yes
CNC-Machined Intake Runner: No
CNC-Machined Exhaust Runner: No
Intake Port Location: Standard
Exhaust Port Shape: Ram Air IV
Exhaust Port Location: Standard
Spark Plug Style: Straight
Intake Valves Included: Yes
Exhaust Valves Included: Yes
Exhaust Valve Diameter (in.): 1.660 in.
Valve Springs Included: Yes
Maximum Valve Lift (in.): 0.575 in.
Outside Diameter of Outer Spring (in.): 1.460 in.
Damper Spring Included: Yes
Number of Springs Per Valve: Dual
Retainers Included: Yes
Locks Included: Yes
Valve Stem Seals Included: Yes
Rocker Arm Studs Included: Yes
Rocker Arms Included: No
Rocker Arm Nuts Included: No
Guideplates Included: Yes
Guideplate Pushrod Size: 5/16 in.
Valve Cover Mounting Style: Perimeter bolt
Accessory Bolt Holes Drilled: Yes
Intake Valve Angle: 14
Exhaust Valve Angle: 14
Valve Guides Included: Yes
Valve Guide Material: Manganese bronze
Valve Seats Machined: Yes
Cylinder Head Color: Natural
Steam Holes Drilled: No
Oiling Style: Through head
Machined for O-Ring: No
Heat Crossover: Yes
Remanufactured: No
Quantity: Sold individually.
Notes: Equipped with springs for use in hydraulic roller camshafts applications. These heads require Ram Air IV (round port) style exhaust manifolds or headers and Edelbrock head bolt kit 8549.