Edelbrock Cylinder Head 61575
CNC-Machined
Yes
Combustion Chamber Volume (cc)
87 Cubic Centimeter
Condition
New
Engine Compatibility
Pontiac V8 6.4L-7.5L 389-455 Cubic Inch
Exhaust Port Location
Standard
Exhaust Runner Volume (CC)
145 Cubic Centimeter
Exhaust Valve Diameter (IN)
1.66 Inch
Finish
Satin
Includes Damper Spring
Yes
Includes Guideplates
Yes
Includes Rocker Arm Studs
Yes
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Edelbrock Cylinder Head
Cylinder Head; Performer; Assembled; Pontiac 389/400/421/428/455 Cubic Inch Engine; Aluminum; 204 CC Intake Port/ 145 CC Exhaust Port; 87 CC Chamber Volume; 2.11 Inch Intake Valve/ 1.66 Inch Exhaust Valve; 1.46 Inch Spring Diameter; Single; With Guides/ Seats/ Springs For Hydraulic Roller Cam
MPN: 61575
These heads are an all new design that utilizes the D-Port exhaust port configuration for use with standard D-Port aftermarket exhaust systems. Performer Pontiac heads are designed for Pontiac engines with a 4.060 Inch or larger bore. Manufactured with optimized oil return passages for increased oil flow. The casting is manufactured from A356 aluminum and heat treated to T6 specification for superior quality. These heads are available in three dual quench combustion chamber sizes, including 65 Cubic Centimeters, 72 Cubic Centimeters, and 87 Cubic Centimeters. The 65 Cubic Centimeters combustion chambers are As-Cast while the 72 Cubic Centimeters and 87 Cubic Centimeters chambers are fully CNC’d to provide a 9.5:1 compression ratio when used with flat top pistons. The spark plug has been relocated closer to the exhaust valve for improved performance. These heads are cast with extra thick port walls and a compact port size, making them ideal for CNC and hand porting. Complete heads include guide plates, rocker studs and high quality valvetrain for direct Bolt-On application. Heat crossover is machined for 50 state emissions legal performance
Condition: New
Engine Compatibility: Pontiac V8 6.4L-7.5L 389-455 Cubic Inch
Style: Assembled
Finish: Satin
Material: Aluminum
CNC-Machined: Yes
Combustion Chamber Volume (cc): 87 Cubic Centimeter
Intake Runner Volume (CC): 204 Cubic Centimeter
Exhaust Runner Volume (CC): 145 Cubic Centimeter
Port Shape: Rectangular
Intake Port Location: Standard
Exhaust Port Location: Standard
Intake Valve Diameter (IN): 2.11 Inch
Exhaust Valve Diameter (IN): 1.66 Inch
Includes Valves: Yes
Spark Plug Angle: Straight
Rocker Arm Nut Thread Size: 7/16 Inch
Includes Rocker Arm Studs: Yes
Valve Lock Type: 7 Degree
Valve Stem Seal Type: Umbrella
Valve Guide Material: Manganese Bronze
Number Of Springs Per Valve: Single
Valve Seats Machined: Yes
Steam Holes Drilled: No
Machined For O-Ring: No
Includes Guideplates: Yes
Includes Damper Spring: Yes
Features
- Choice Of Fully CNC Ported 72 Cubic Centimeters Or 87 Cubic Centimeters Combustion Chamber, Or As Cast 65 Cubic Centimeters Chamber
- Cast With Extra Thick Port Walls And A Compact Port Size, Making Them Ideal For CNC And Hand Porting
- Spark Plugs Relocated Closer To Exhaust Valve
- Improved Oil Return Passages
- Includes Machined Heat Crossover Passage
- Also Includes Guide Plates, Rocker Studs And High Quality Valvetrain For Direct Bolt-On Application
- Limited 1 Year Warranty
| Specifications of Edelbrock Cylinder Head 61575 | |
| CNC-Machined | Yes |
| Combustion Chamber Volume (cc) | 87 Cubic Centimeter |
| Condition | New |
| Engine Compatibility | Pontiac V8 6.4L-7.5L 389-455 Cubic Inch |
| Exhaust Port Location | Standard |
| Exhaust Runner Volume (CC) | 145 Cubic Centimeter |
| Exhaust Valve Diameter (IN) | 1.66 Inch |
| Finish | Satin |
| Includes Damper Spring | Yes |
| Includes Guideplates | Yes |
| Includes Rocker Arm Studs | Yes |
| Includes Valves | Yes |
| Intake Port Location | Standard |
| Intake Runner Volume (CC) | 204 Cubic Centimeter |
| Intake Valve Diameter (IN) | 2.11 Inch |
| Machined For O-Ring | No |
| Material | Aluminum |
| Number Of Springs Per Valve | Single |
| Port Shape | Rectangular |
| Rocker Arm Nut Thread Size | 7/16 Inch |
| Spark Plug Angle | Straight |
| Steam Holes Drilled | No |
| Style | Assembled |
| Valve Guide Material | Manganese Bronze |
| Valve Lock Type | 7 Degree |
| Valve Seats Machined | Yes |
| Valve Stem Seal Type | Umbrella |
1900 Pontiac V8 326-455
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