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Edelbrock 61575

Performer D-Port Cylinder Head for Pontiac V8

Edelbrock 61575

350-61575

made in usa
jegs shipping
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Edelbrock 61575 Performer D-Port Cylinder Head for Pontiac V8 $1,283.93
Performer Cylinder Head
  • 1962-1979 Pontiac 389-455ci
  • Valve Springs for Hydraulic Roller
  • Valve Size: 2.11"/1.66"
  • Port Volume: 204cc/145cc
  • 87cc Combustion Chambers
  • 50 State Legal
  • Assembled, Sold Each

  • Edelbrock 61575 Details

    Performer Pontiac 87cc D-Port Cylinder Heads

    Performer Pontiac heads 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 cid V8 Pontiac engines with a 4.060'' or larger bore. They feature optimized oil return passages for increased oil flow. These heads are available in three heart shaped combustion chamber sizes, including 65cc, 72cc and 87cc. The 65cc combustion chambers are as-cast while the 72cc and 87cc 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.

    Combustion Chamber Volume:87cc
    Intake Runner Volume:204cc
    Exhaust Runner Volume:145cc
    Intake Valve Diameter:2.11''
    Exhaust Valve Diameter:1.66''
    Valve Stem Diameter:11/32''
    Valve Guides:Manganese Bronze
    Deck Thickness:5/8''
    Valve Spring Diameter:1.46''
    Valve Spring Maximum Lift:0.550''
    Rocker Stud:7/16''
    Guideplate:Hardened Steel
    Pushrod Diameter:5/16''
    Valve Angle:14°
    Exhaust Port Location:D-Port (Stock Location)
    Spark Plug Fitment:14mm x 3/4'' Reach,
    Gasket Seat


    Valve LiftIntakeExhaust
    .100''6552
    .200''140105
    .300''199130
    .400''237146
    .500''250151
    .600''257156
    .700''258157
    Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28'' H2O

    Specifications:

    Type
    Complete
    Usage
    Street/Performance
    Emission
    N/A
    Engine Make/Size
    Pontiac 326-455
    Cylinder Head Type
    Standard
    Preparation
    Bolt On (Not Required)
    Finish
    Cast Aluminum
    Accessory Bolt Holes Drilled
    Yes
    CNC-Machined Combustion Chamber
    Yes
    CNC-Machined Exhaust Runner
    No
    CNC-Machined Intake Runner
    No
    Combustion Chamber Style
    Heart
    Combustion Chamber Volume (cc)
    87
    Cylinder Head Finish
    Natural
    Cylinder Head Material
    Aluminum
    Cylinder Head Style
    Assembled
    Damper Spring Included
    Yes
    Exhaust Port Location
    Standard
    Exhaust Port Shape
    D-Port
    Exhaust Runner Volume (cc)
    145
    Exhaust Valve Diameter (in.)
    1.66
    Exhaust Valves Included
    Yes
    Guideplates Included
    Yes
    Heat Crossover
    Yes
    Intake Port Location
    Standard
    Intake Port Shape
    Rectangular
    Intake Runner Volume (cc)
    204
    Intake Valve Angle
    14
    Intake Valve Diameter (in.)
    2.11
    Intake Valves Included
    Yes
    Lock Style
    7 degree
    Locks Included
    Yes
    Machined for O-Ring
    No
    Maximum Valve Lift (in.)
    0.6
    Number of Springs Per Valve
    Dual
    Oiling Style
    Through pushrod
    Outside Diameter of Outer Spring (in.)
    1.46
    Quantity
    Sold individually
    Retainer Material
    Steel
    Retainers Included
    Yes
    Rocker Arm Nut Thread Size (in.)
    7/16"-20
    Rocker Arm Nuts Included
    No
    Rocker Arm Studs Included
    Yes
    Rocker Arms Included
    No
    Spark Plug Style
    Angled
    Steam Holes Drilled
    No
    Valve Cover Mounting Style
    Perimeter bolt
    Valve Guide Material
    Manganese bronze
    Valve Guides Included
    Yes
    Valve Seat Machine Style
    3-angle
    Valve Seat Material
    Ductile iron
    Valve Seats Machined
    Yes
    Valve Springs Included
    Yes
    Valve Stem Seal Style
    Umbrella
    Valve Stem Seals Included
    Yes
    Manufacturer's Part Number:
    61575

    Pontiac D-Port Powerhouse!


    Performer Pontiac D-Port heads 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 cid V8 Pontiac engines with a 4.060'' or larger bore. They feature optimized oil return passages for increased oil flow.

    These heads are available in three heart shaped combustion chamber sizes, including 65cc, 72cc and 87cc. The 65cc combustion chambers are as-cast while the 72cc and 87cc 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. Made In The USA!




    Technical Notes: 350 c.i.d. engines may require notching the block for valve clearance. Three head bolt bosses are raised higher than the standard D-port heights and will require head bolt kit p/n 350-8561 to install these heads.

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    350-pontiacdportspecsphoto.jpg