Edelbrock 50459 Big Block Chevy E-STREET 290cc Oval Port, Each

Description: Description The Edelbrock #50459 E-Street cylinder 290 Oval Port heads are designed for Big-Block applications. The Edelbrock E-Street cylinder heads offer American made quality and affordable performance. E-Street cylinder heads feature as-cast ports and are designed for entry-level street performance applications operating in the idle-to-5500 rpm range. The modern combustion chamber designs improve the combustion process and larger than stock intake and exhaust ports move more air through your engine for improve efficiency. For use on pre-pollution controlled vehicles only. Designed for entry-level street performance engines and ideal for operating in the idle to 5500 rpm Made from A356 aluminum castings that are heat treated to T-6 spec for superior strength and quality Features larger than stock intake and exhaust ports to improve engine efficiency; resulting in more horsepower, torque and improved mileage potential Includes hardened spring cups and Heli-Coil threaded inserts in the rocker stud bosses for increased strength; these are the details that most low-cost competitors leave out of their heads These heads are sold separately and Made in the USA! Technical Notes: Recommended spark plugs are Champion RC12YC or equivalent 14mm x 3/4" reach with flat gasket seat. Designed for use with hydraulic flat tappet camshafts. The valve and seat combination, used in these heads, is not recommended for use with a hydraulic or mechanical roller camshaft Specifications SpecificationCylinder Head StyleAssembledCylinder Head MaterialAluminumIntake Port ShapeOvalIntake Valve Diameter (in)2.190 in.Cylinder Head FinishNaturalCombustion Chamber Volume (cc)110CNC-Machined Combustion ChamberNoIntake Runner Volume (cc)290ccExhaust Runner Volume (cc)110ccCNC-Machined Intake RunnerNoCNC-Machined Exhaust RunnerNoIntake Port LocationStandardExhaust Port ShapeD-portExhaust Port LocationStandardSpark Plug StyleAngleIntake Valves IncludedYesExhaust Valves IncludedYesExhaust Valve Diameter (in)1.880 in.Valve Springs IncludedYesMaximum Valve Lift (in)0.700 in.Outside Diameter of Outer Spring (in)1.550 in.Damper Spring IncludedNoNumber of Springs Per ValveDualRetainers IncludedYesRetainer MaterialSteelLocks IncludedYesLock Style7 degreeValve Stem Seals IncludedYesValve Stem Seal StyleUmbrellaRocker Arm Studs IncludedYesRocker Arm Nut Thread Size7/16-20 in.Rocker Arms IncludedNoRocker Arm Nuts IncludedNoGuideplates IncludedYesGuideplate Pushrod Size3/8 in.Valve Cover Mounting StylePerimeter boltAccessory Bolt Holes DrilledYesIntake Valve Angle26Exhaust Valve Angle26Valve Guides IncludedYesValve Guide MaterialManganese bronzeValve Seats MachinedYesValve Seat Machine Style3-angleValve Seat MaterialPowdered metalSteam Holes DrilledNoOiling StyleThrough pushrodMachined for O-RingNoHeat CrossoverNoQuantitySold individually.Item #EDL50459Mfg Part #50459 Powered by

Price: 1405.59 USD

Location: Denver, Colorado

End Time: 2025-02-01T09:12:04.000Z

Shipping Cost: 0 USD