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Edelbrock 77589 - Edelbrock Small Block Chevy Victor Jr. Race Series Cylinder Heads



Edelbrock 77589 - Edelbrock Small Block Chevy Victor Jr. Race Series Cylinder Heads
Edelbrock 77589 - Edelbrock Small Block Chevy Victor Jr. Race Series Cylinder Heads

JEGS Part Number: 350-77589

Small Block Chevy Victor Jr 23° Cylinder Head
  • 302-400ci
  • 215cc Intake Ports
  • 64cc Combustion Chambers
  • 2.08"/1.60" Valves
  • 1.55" Valve Springs
  • Max Lift: .650"
  • 7/16" Rocker Studs
  • Assembled, Head, Sold Each

    Edelbrock 77589 Details

    Victor Jr. 64cc Aluminum Cylinder Heads

    These heads have .300'' raised exhaust ports and hardened, ductile iron valve seats and phosphor bronze guides. A 9/16'' thick deck surface provides superior gasket retention. Valves are 1-piece, stainless steel.

    Tech Tip
    To gain more spark plug clearance, Edelbrock recommends using Champion RC Series plugs, such as the RC12YC (P/N 192-49776). They are 0.230'' shorter than conventional spark plugs and have a 5/8'' hex for easier access.

    Edelbrock Small Block Chevy Victor Jr. Race Series Cylinder Heads

    These maximum power and affordable Edelbrock Victor Jr. cylinder heads have the potential to produce 530-580 horsepower right out of the box. All heads are sold individually, and part numbers 350-77579 and 350-77649 are bare heads with valves only. With 64cc chambers and a 12cc domed piston in a 350 engine, the compression ratio is approximately 12.5:1. In addition, these heads accept standard 23° valvetrain hardware.



    Edelbrock Victor Jr. Cylinder Head Applications
    Small Block Chevy 302-400 (Competition and High-Performance Street)

    Features:
  • Combustion Chambers: 64cc or 70cc
  • Intake Runner Volume: 215cc
  • Exhaust Runner Volume: 85cc
  • Intake Valve Diameter: 2.08"
  • Exhaust Vavle Diameter: 1.60"
  • Valve Stem Diameter: 11/32"
  • Valve Guides: Manganese Bronze
  • Deck Thickness: 9/16"
  • Valve Spring Diameter: 1.55"
  • Maximum Lift: .650"
  • Rocker Stud: 7/16"
  • Guideplate: Hardened Steel
  • Pushrod Diameter: 5/16
  • Valve Angle: 23&
  • Exhaust Port Location: Raised .300"
  • Spark Plug: 14mm x 3/4 Reach, Gasket Seat
  • Made In The USA!

  • Edelbrock 77589

    Engine Make/Size
    Chevy Small Block (262-400)
    Usage
    Competition
    Type
    Complete
    Emission
    Non-Emissions
    Cylinder Head Type
    Standard
    Preparation
    Bolt On (Not Required)
    Finish
    Cast Aluminum
    Accessory Bolt Holes Drilled
    Yes
    Calculator
    Compression Calculator
    CNC-Machined Combustion Chamber
    No
    CNC-Machined Exhaust Runner
    No
    CNC-Machined Intake Runner
    No
    Combustion Chamber Volume (cc)
    64
    Cylinder Head Finish
    Natural
    Cylinder Head Material
    Aluminum
    Cylinder Head Style
    Assembled
    Damper Spring Included
    Yes
    Exhaust Port Location
    Standard
    Exhaust Port Shape
    Square
    Exhaust Runner Volume (cc)
    85
    Exhaust Valve Diameter (in.)
    1.6
    Exhaust Valves Included
    Yes
    Guideplates Included
    Yes
    Heat Crossover
    No
    Intake Port Location
    Standard
    Intake Port Shape
    Rectangular
    Intake Runner Volume (cc)
    215
    Intake Valve Angle
    23
    Intake Valve Diameter (in.)
    2.08
    Intake Valves Included
    Yes
    Lock Style
    7 degree
    Locks Included
    Yes
    Machined for O-Ring
    No
    Maximum Valve Lift (in.)
    0.65
    Number of Springs Per Valve
    Dual
    Oiling Style
    Through pushrod
    Outside Diameter of Outer Spring (in.)
    1.55
    Quantity
    Sold individually
    Retainer Material
    Steel
    Retainers Included
    Yes
    Rocker Arm Nut Thread Size (in.)
    7/16/2020
    Rocker Arm Nuts Included
    No
    Rocker Arm Studs Included
    Yes
    Rocker Arms Included
    No
    Spark Plug Style
    Angle
    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
    Positive stop
    Valve Stem Seals Included
    Yes
    Manufacturer's Part Number:
    77589
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