$$996.50Engine \ Cylinder Heads \ Chevy Big Block Aluminum Heads50459
EDL50459
Edelbrock 50459 Big Block Chevy E-STREET 290cc Oval Port, Each
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. ...
EdelbrockEdelbrock 50459 Big Block Chevy E-STREET 290 Oval

Edelbrock

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

$996.50

Item #: EDL50459

Mfg Part #: 50459

UPC #: 085347504596

Applies To Continental U.S. orders only

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Qty Available: 0

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Specifications
Cylinder Head Specifications
Cylinder Head Style
Assembled
Cylinder Head Material
Aluminum
Intake Port Shape
Oval
Intake Valve Diameter (in)
2.190 in.
Cylinder Head Finish
Natural
Combustion Chamber Volume (cc)
110
CNC-Machined Combustion Chamber
No
Intake Runner Volume (cc)
290cc
Exhaust Runner Volume (cc)
110cc
CNC-Machined Intake Runner
No
CNC-Machined Exhaust Runner
No
Intake Port Location
Standard
Exhaust Port Shape
D-port
Exhaust Port Location
Standard
Spark Plug Style
Angle
Intake Valves Included
Yes
Exhaust Valves Included
Yes
Exhaust Valve Diameter (in)
1.880 in.
Valve Springs Included
Yes
Maximum Valve Lift (in)
0.700 in.
Outside Diameter of Outer Spring (in)
1.550 in.
Damper Spring Included
No
Number of Springs Per Valve
Dual
Retainers Included
Yes
Retainer Material
Steel
Locks Included
Yes
Lock Style
7 degree
Valve Stem Seals Included
Yes
Valve Stem Seal Style
Umbrella
Rocker Arm Studs Included
Yes
Rocker Arm Nut Thread Size
7/16-20 in.
Rocker Arms Included
No
Rocker Arm Nuts Included
No
Guideplates Included
Yes
Guideplate Pushrod Size
3/8 in.
Valve Cover Mounting Style
Perimeter bolt
Accessory Bolt Holes Drilled
Yes
Intake Valve Angle
26
Exhaust Valve Angle
26
Valve Guides Included
Yes
Valve Guide Material
Manganese bronze
Valve Seats Machined
Yes
Valve Seat Machine Style
3-angle
Valve Seat Material
Powdered metal
Steam Holes Drilled
No
Oiling Style
Through pushrod
Machined for O-Ring
No
Heat Crossover
No
Quantity
Sold individually.
General
Brand
Edelbrock
Item #
EDL50459
Mfg Part #
50459
UPC
085347504596
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

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