Edelbrock 50459 BBC E-Street Cylinder Head, Assembled, 290cc Intake, 110cc Chamber, 2.19 in. Valve. Aluminum, Each

$1,303.57
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SKU:
EDE50459
MPN:
50459
UPC:
85347504596
Condition:
New
Weight:
43.20 LBS
Shipping:
Calculated at Checkout

Applies To Continental U.S. orders only

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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

Cylinder Head Style:
Assembled
Cylinder Head Material:
Cast aluminum
Cylinder Head Finish:
Natural
CNC-Machined Combustion Chamber:
No
Combustion Chamber Volume (cc):
110
Combustion Chamber Style:
N/A
CNC-Machined Intake Runner:
No
Intake Runner Volume (cc):
290cc
Intake Port Shape:
Oval
Intake Port Location:
Standard
Intake Valve Angle:
26 degree
CNC-Machined Exhaust Runner:
No
Exhaust Runner Volume (cc):
110cc
Exhaust Port Shape:
D-port
Exhaust Port Location:
Standard
Exhaust Valve Angle:
26 degree
Intake Valves Included:
Yes
Intake Valve Diameter (in.):
2.190 in.
Exhaust Valves Included:
Yes
Exhaust Valve Diameter (in.):
1.880 in.
Valve Type:
Stainless
Maximum Valve Lift (in.):
0.700 in.
Valve Springs Included:
Yes
Valve Spring Type:
Dual
Outside Diameter of Outer Spring (in.):
1.550 in.
Valve Guides Included:
Yes
Valve Guide Material:
Manganese bronze
Valve Seats Machined:
Yes
Valve Seat Material:
Powdered metal
Valve Seat Machine Style:
3-angle
Retainers Included:
Yes
Retainer Material:
Steel
Valve Stem Seals Included:
Yes
Valve Stem Seal Style:
PTFE Positive Stop
Locks Included:
Yes
Lock Style:
7 degree
Camshaft Style:
Hydraulic Flat Tappet
Spark Plug Style:
Angled
Guideplates Included:
Yes
Guideplate Pushrod Size:
3/8 in.
Rocker Arm Studs Included:
Yes
Rocker Arm Nut Thread Size:
7/16-20 in.
Accessory Bolt Holes Drilled:
Yes
Valve Cover Mounting Style:
Perimeter bolt
Heat Crossover:
No
Steam Holes Drilled:
No
Oiling Style:
Through pushrod
Machined for O-Ring:
No
Quantity:
Sold individually.
Make:
Chevrolet
Engine Family:
Chevy big block Mark IV
Engine Sizes:
6.5L/396-7.4L/454
Years:
1966-1990
Engine Family:
Chevy big block Gen V
Engine Sizes:
7.4L/454
Years:
1991-1995