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Edelbrock 60589

Performer RPM Cylinder Head for Pontiac V8

Edelbrock 60589

350-60589

made in usa
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Edelbrock 60589 Performer RPM Cylinder Head for Pontiac V8 $829.50
Pontiac Performer RPM Cylinder Head
  • 1962-1979 Pontiac 389-455ci
  • Round Exhaust Port (Ram Air)
  • Port Volume: 215cc/175cc
  • 72cc Combustion Chambers
  • 7/16" Rocker Studs
  • Bare Head, Sold Each

  • Edelbrock 60589 Details

    Pontiac Performer RPM Aluminum Cylinder Heads

    A 72cc chamber version for high-compression, racing applications. Heads have Ram Air IV exhaust port flanges. Requires head bolt kit #350-8556 for cylinder heads manufactured before 3/15/02. For cylinder heads manufactured after 3/15/02 bolt kit #350-8549 will be required.

    Combustion Chamber Volume:87cc
    Intake Runner Volume:215cc
    Exhaust Runner Volume:175cc
    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:0.575''
    Rocker Stud:7/16''
    Guideplate:Hardened Steel
    Pushrod Diameter:5/16''
    Valve Angle:14°
    Exhaust Port Location:Stock Ram Air IV
    Spark Plug Fitment:14mm x 3/4'' Reach,
    Gasket Seat


    Valve LiftIntakeExhaust
    .100''7169
    .200''143120
    .300''208151
    .400''253173
    .500''264191
    .600''286199
    .700''N/AN/A
    Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28'' H2O

    Specifications:

    Type
    Bare
    Emission
    Non-Emissions
    Usage
    Street/Performance
    Engine Make/Size
    Pontiac 326-455
    Cylinder Head Type
    Standard
    Preparation
    Requires Professional Preparation (Bare)
    Finish
    Cast Aluminum
    Accessory Bolt Holes Drilled
    Yes
    CNC-Machined Combustion Chamber
    No
    CNC-Machined Exhaust Runner
    No
    CNC-Machined Intake Runner
    No
    Combustion Chamber Volume (cc)
    72
    Cylinder Head Finish
    Natural
    Cylinder Head Material
    Aluminum
    Cylinder Head Style
    Bare
    Damper Spring Included
    No
    Exhaust Port Location
    Standard
    Exhaust Port Shape
    Ram Air IV
    Exhaust Runner Volume (cc)
    175
    Exhaust Valve Diameter (in.)
    1.66
    Exhaust Valves Included
    No
    Guideplates Included
    No
    Heat Crossover
    Yes
    Intake Port Location
    Standard
    Intake Runner Volume (cc)
    215
    Intake Valve Angle
    14
    Intake Valve Diameter (in.)
    2.11
    Intake Valves Included
    No
    Locks Included
    No
    Machined for O-Ring
    No
    Oiling Style
    Through pushrod
    Quantity
    Sold individually
    Retainers Included
    No
    Rocker Arm Nuts Included
    No
    Rocker Arm Studs Included
    No
    Rocker Arms Included
    No
    Steam Holes Drilled
    No
    Valve Cover Mounting Style
    Perimeter bolt
    Valve Guide Material
    Manganese bronze
    Valve Guides Included
    Yes
    Valve Seat Material
    Ductile iron
    Valve Seats Machined
    No
    Valve Springs Included
    No
    Valve Stem Seals Included
    No
    Manufacturer's Part Number:
    60589

    These cylinder heads are designed for outstanding performance gains in 1962-79 389-455ci Pontiac engines. They are patterned after the 1969-70 Ram Air IV Pontiac cylinder head.

    Performer heads #60579/60575 are 50-state emissions legal for 1965-79 vehicles. They have 87cc combustion chambers designed to maximize performance while using less expensive, low octane fuel with a streetable 9.5:1 compression ratio.

    Performer RPM heads with 72cc combustion chamber are for higher compression engines. Performer RPM #60509 is semi-machined and must be finished by a professional head porter. They include valve guides and seats installed with no intake pushrod holes. Performer RPM #60587 is not port matched or bowl blended and is NHRA accepted for Stock and Super Stock.

    Performer RPM CNC Heads feature the same specifications as the Performer RPM heads but have CNC-machined combustion chambers, which results in a consistent and precise chamber for improved flow.

    Features
  • Combustion Chamber Volume: 87cc or 72cc
  • Intake Runner Volume: 215cc
  • Exhaust Runner Volume: 175cc
  • Intake Valve Diameter: 2.11"
  • Exhaust Valve Diameter: 1.66"
  • Valve Guides: Manganese Bronze
  • Deck Thickness: 5/8"
  • Valve Spring Diameter: 1.46"
  • Maximum Lift: .575"
  • Pushrod Diameter: 7/16"
  • Guideplate: Hardened Steel
  • Valve Angle: 14°
  • Exhaust Port Location: Stock Ram Air IV
  • Spark Plug Fitment: 14mm x 3/4 Reach, Gasket Seat
  • Made in the USA

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