Beskrivning

Edelbrock part #61579 Performer Pontiac D-Port Cylinder Heads designed for 1962-79 389 400 421 428 and 455 c.i.d. V8 Pontiac engines with a 4.060" or larger bore. They feature optimized oil return passages for increased oil flow. The Edelbrock #61579 Performer Pontiac Cylinder Head utilize a D-Port exhaust port configuration for use with standard D-port exhaust systems. They are designed for 1962-79 389 400 421 428 and 455 c.i.d. V8 Pontiac engines with a 4.060" or larger bore. They feature optimized oil return passages for increased oil flow. The spark plug has been relocated closer to the exhaust valve for improved performance. This head is cast with extra thick port walls and a compact port size making them ideal for CNC and hand porting. Complete cylinder head includes guide plates rocker studs and high quality valvetrain for direct bolt-on application. Heat crossover is machined for 50-state emissions legal performance.

• Specifikationer

  • Intake Valve Diameter: 2.11"
  • Guide Plates Included: Yes
  • Intake Runner Volume: 204 CCM
  • Exhaust Runner Volume: 145 CCM
  • Valve Spring Diameter:1.46 IN
  • CNC Ported: Yes
  • Valve Springs Included:Yes
  • Seat Angle:Exhaust 45 deg/Intake 45 DD
  • Horsepower: 400-500 HJ
  • Valve Angle:14 DD
  • Push Rod Diameter:(Suggested) 0.3125 IN
  • Guide Material: Manganese Bronze
  • Valve Stem Diameter:0.3438 IN
  • Rocker Arm Stud Diameter:0.4375 IN
  • Seat Material:Ductile Iron
  • Valve Spring Maximum Lift:0.575 IN
  • Material: Aluminum
  • Camshaft Type: Flat Tappet
  • Grade Type: Performance
  • EGR Port: Yes
  • Retainer Included:Yes
  • Combustion Chamber Volume: 87 CCM
  • 9040: D-215-94
  • Construction Type: Complete
  • Valve Included:Yes
  • Guide Plate Material: Hardened Steel
  • Exhaust Port Location: Standard
  • Exhaust Valve Diameter: 1.66"
  • Family: Performer
  • Head Casting Number: N/A
  • Deck Thickness: 0.625"
  • Series:Performer
  • Quantity:Sold Individually