Made in USA
50459 E-Street Cylinder Heads for Big Block Chevy
InfoVehicle Info Needed
EDELBROCKPART NUMBER: 350-50459

50459 E-Street Cylinder Heads for Big Block Chevy

$1,29995
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Chevy Big Block
  • Big Block Chevy 396-502ci
  • Valve Springs for Hydraulic Flat Tappet
  • Port Volume: 290cc/110cc
  • Valve Size: 2.19"/1.88"
  • 110cc Combustion Chambers
  • Max Lift: .700"
  • Assembled, Sold Individually

  • Entry Level Street Performance Upgrade
  • A356 Aluminum
  • Edelbrock Quality And Performance
  • Hardened sping cups
  • Heli-Coil threaded inserts in rocker stud bosses for strength
  • Made In U.S.A.

    Specifications:

  • Chamber Volume: 110cc
  • Deck Thickness: 9/16"
  • Valve Spring Diameter: 1.55"
  • Max Lift: .700"
  • Valve Spring Installed Height: 1.750"
  • Rocker Studs: 7/16" with Guide Plate
  • Pushrod Diameter: 3/8"
  • Intake Port Volume: 290cc
  • Intake Valve Diameter: 2.19"
  • Exhaust Port Volume: 110cc
  • Exhaust Valve Diameter: 1.88"

    Valve LiftIntakeExhaust
    .100'7471
    .200'143128
    .300'207153
    .400'250178
    .500'284200
    .600'309218
    .700'N/AN/A
    Flow Numbers as tested by Edelbrock's SuperFlo SF-1020 flow bench @ 28' H2O

    Emissions Note:

    This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

    Affordable Aluminum Performance Built for the Street

    Edelbrock E-Street cylinder heads deliver proven aluminum performance for street-driven muscle cars, hot rods, and performance trucks. Manufactured in the USA from A356 T-6 heat-treated aluminum, E-Street heads are engineered to provide improved airflow, efficient combustion chamber design, and reliable durability for entry-level to moderate-performance engine combinations. Larger-than-stock intake and exhaust runners help increase horsepower, broaden torque curves, and improve throttle response while maintaining excellent street manners in idle-to-5,500 RPM operating ranges. Fully assembled with premium components including stainless steel valves, manganese bronze valve guides, hardened spring cups, and screw-in rocker studs, Edelbrock E-Street cylinder heads offer enthusiasts an affordable upgrade with the quality, fitment, and engineering expected from one of the most trusted names in performance engine components.

Part TypeCylinder Head
Product LineEdelbrock E-Street Cylinder Heads
BrandEDELBROCK
Package Height8.6
Package Width11.4
Package Length25.9
Weight43.73 PG
Retainers IncludedYes
Guideplates IncludedYes
Oiling StyleThrough pushrod
Valve Seats MachinedYes
Heat CrossoverNo
Number Of Springs Per ValveDual
Spark Plug StyleAngled
Damper Spring IncludedNo
Cylinder Head TypeOval Port- Standard
Valve Stem Seals IncludedYes
Intake Valve Diameter2.19 in (55.626 mm)
Valve Guide MaterialManganese bronze
Outside Diameter Of Outer Spring1.55 in (39.4 mm)
Steam Holes DrilledNo
Rocker Arm Studs IncludedYes
Retainer MaterialSteel
Cnc-Machined Combustion ChamberNo
Exhaust Valve Diameter1.88 in (47.752 mm)
Part CategoryPerformance Parts
Cylinder Head MaterialAluminum
Intake Port LocationStandard
Rocker Arm Nut Thread Size (In.)7/16"-20
EmissionNon-Emissions
Exhaust Valves IncludedYes
Locks IncludedYes
Engine Make/SizeChevy Big Block (396-502)
Lock Style7 degree
Rocker Arms IncludedNo
Rocker Arm Nuts IncludedNo
Cylinder Head FinishNatural
Intake Valve Angle26
Maximum Valve Lift0.7 in (17.78 mm)
Valve Seat MaterialPowdered metal
FinishPolished
Valve Springs IncludedYes
UsageStreet/Performance
Valve Seat Machine Style3-angle
Valve Guides IncludedYes
Cnc-Machined Intake RunnerNo
Intake Valves IncludedYes
QuantitySold individually
Accessory Bolt Holes DrilledYes
Exhaust Runner Volume (Cc)110
Exhaust Port LocationStandard
TypeComplete
Combustion Chamber Volume (Cc)110
Machined For O-RingNo
PreparationBolt On (Not Required)
Exhaust Valve Angle26
Cylinder Head StyleAssembled
Part FitmentSemi Universal
Valve Cover Mounting StylePerimeter bolt
Valve Stem Seal StyleUmbrella
Intake Runner Volume (Cc)290
Cnc-Machined Exhaust RunnerNo
Vendor Part Number50459
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
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