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Instruction Sheets for Part Number EDL-61525
Edelbrock Performer RPM Pontiac CNC Cylinder Heads
Cylinder Head, Performer RPM, CNC, Assembled, Aluminum, 87cc Chamber, 215cc Intake Runner, Pontiac, 455, Each
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Estimated Ship Date from Texas: Monday 10/19/2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
61525
Part Type:
Product Line:
Summit Racing Part Number:
EDL-61525
UPC:
085347615254
Combustion Chamber Volume (cc):
87
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 pushrod
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.
Edelbrock Performer RPM Pontiac CNC Cylinder Heads
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.
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