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Edelbrock 5023 - Edelbrock E-Street Cylinder Heads

Edelbrock 5023 - Edelbrock E-Street Cylinder Heads

Edelbrock#350-5023

E-Street Cylinder Heads
  • Small Block Ford 289-351ci
  • 170cc Intake Ports
  • 60cc Combustion Chambers
  • 1.90"/1.60" Valves
  • 1.46" Valve Springs
  • Max Lift: .550"
  • 3/8" Rocker Stud
  • Assembled, Sold In Pairs

    Edelbrock 5023 - Edelbrock E-Street Cylinder Heads Details

    Small Block Ford

    Specifications:

  • Chamber Volume: 60cc
  • Deck Thickness: 5/8"
  • Valve Spring Diameter: 1.25"
  • Max Lift: .550"
  • Valve Spring Installed Height: 1.750"
  • Rocker Studs: 3/8" with Guide Plate
  • Pushrod Diameter: 5/16"
  • Intake Port Volume: 170cc
  • Intake Valve Diameter: 1.90"
  • Exhaust Port Volume: 60cc
  • Exhaust Valve Diameter: 1.60"

    Technical Notes:
    Use with hydraulic camshafts less than .550" max lift. Not Compatible with hydraulic roller camshafts. Recommended spark plugs are Champion RC12YC or equivalent 14mm x ¾" reach with flat gasket seat. Requires hardened pushrods. 289-302 cid with 7/16" head bolts requires 350-9680 head bolt bushing kit. 1.90" heads are ideal for stock pistons; 2.02" heads require additional piston to valve clearance.


    Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28" H2O
    Valve Lift .100" .200" .300" .400" .500" .600" .700"
    Intake 65 121 174 216 242 249 -
    Exhaust 42 92 130 150 162 168 -

  • Edelbrock 5023 - Edelbrock E-Street Cylinder Heads

    QUALITY AND AFFORDABLE PERFORMANCE!

    E-Street cylinder heads are designed for entry level street performance engines operating in the idle to 5,500 rpm range. Manufactured in the USA, these heads feature the quality and details of higher priced cylinder heads, starting with A356 aluminum castings that are heat treated to T-6 spec for superior casting strength and quality.

    Their modern combustion chamber designs improve the combustion process and larger than stock intake and exhaust ports move more air through an engine; these features improve efficiency, resulting in more horsepower, broad torque and improved mileage potential.

    Every E-Street is assembled with manganese bronze valve guides, powder metal interlocking valve seats, stainless steel one-piece valves with hardened tips, 1.25" or 1.55" diameter valve springs, 3/8" or 7/16" screw-in studs and hardened guide plates. As added value, E-Street heads include hardened valve springs cups to prevent casting wear and Heli-coil™ threaded inserts in the rocker stud bosses for proper torque; these are the quality details that most low-cost competitors leave out of their heads. Made In The USA!

    Features:
  • Ideal For Operating In The Idle To 5500 RPM Range
  • A356 Aluminum & Heat Treated to T-6 Spec
  • Larger Than Stock Intake & Exhaust Ports For Increased Power
  • Modern Combustion Chamber Design For Improved Efficiency & Mileage Potential
  • Heli-Coil Threaded Inserts In The Rocker Stud Bosses For Proper Torque Load without Damaging Threads
  • Hardened Spring Cups Between The Valve Springs & Casting For Wear Protection
  • Made In The USA!

  • Edelbrock 350-5023

    Type
    Complete
    Emission
    Non-Emissions
    Finish
    Polished
    Usage
    Street/Performance
    Engine Make/Size
    Ford Small Block
    Cylinder Head Type
    Standard
    Preparation
    Bolt On (Not Required)
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