The Edelbrock 61575 is a Performer aluminum cylinder head for 1962-1979 Pontiac 389, 400, 421, 428 and 455 cubic inch V8s with a 4.060 in or larger bore. It has D-port exhaust ports for standard D-port exhaust systems, 204 cc intake runners, 87 cc combustion chambers, 2.11 in intake and 1.66 in exhaust valves and a 14 degree valve angle. It comes complete with guide plates, rocker studs, valves, retainers and valve springs for hydraulic roller camshafts, with 0.575 in maximum lift. The spark plug is relocated closer to the exhaust valve and the heat crossover is machined. Sold as a single head.
Notes:
- Requires a 4.060 in or larger cylinder bore.
- Valve springs are for hydraulic roller camshafts.
- Rocker stud diameter: 7/16 in. Pushrod diameter: 5/16 in.
- Sold individually; order two for a V8.
Specifications:
- Brand: Edelbrock
- Part Number: 61575
- Part Type: Engine Cylinder Head
- Series: Performer
- Material: Aluminum
- Intake Valve Diameter: 2.11 in
- Valve Angle: 14 Degree
- Intake Runner Volume: 204 cc
- Guide Plate Material: Hardened Steel
- Camshaft Type: Hydraulic Roller
- Horsepower: 400-500 HP
- Seat Angle: Exhaust 45 deg/Intake 45 deg
- Pushrod Diameter: 0.3125 (5/16) in
- Rocker Stud Diameter: 0.4375 (7/16) in
- Valve Spring Diameter: 1.46 in
- Valve Spring Maximum Lift: 0.575 in
- Valve Stem Diameter: 0.3438 in
- Guide Plates Included: Yes
- Exhaust Runner Volume: 145 cc
- Exhaust Valve Diameter: 1.66 in
- Construction Type: Complete
- EGR Port: Yes
- Retainer Included: Yes
- Valve Included: Yes
- CNC Ported: Yes
- Exhaust Port Location: Standard
- Seat Material: Ductile Iron
- Deck Thickness: 0.625 in
- Combustion Chamber Volume: 87 cc
- Guide Material: Manganese Bronze
- Valve Springs Included: Yes
- Sold as: Each
- Manufacturer warranty: 12 months
Engine Applications
- Pontiac: 326 (5.3L), 350 (5.7L), 389 (6.4L), 400 (6.6L), 421 (6.9L), 428 (7.0L), 455 (7.4)
Emissions Status
- 50-state legal under California Air Resources Board (CARB) Executive Order D-215-94, for the vehicles covered by that Executive Order.
FAQ
What engines does the Edelbrock 61575 fit?
1962-1979 Pontiac 389, 400, 421, 428 and 455 cubic inch V8s with a 4.060 in or larger bore.
What exhaust does the 61575 work with?
It has D-port exhaust ports for use with standard D-port exhaust systems.
What camshaft is the 61575 set up for?
It comes complete with valve springs for hydraulic roller camshafts, with 0.575 in maximum valve lift.
Is the Edelbrock 61575 street legal?
It is 50-state legal under CARB Executive Order D-215-94 for the vehicles that Executive Order covers.
California Proposition 65: 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.
