EDELBROCK

EDELBROCK #50459 - E-Street Oval-Port Cylinder Head for Big-Block Chevy - Solid Flat Tappet

$1,241.95 USD

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The Edelbrock #50459 E-Street cylinder 290 Oval Port head is designed for Big-Block applications. The Edelbrock E-Street cylinder head offers American made quality and affordable performance. E-Street cylinder head features 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.

Combustion Chamber Volume (cc): 110

Intake Runner Volume (cc): 290cc

Exhaust Runner Volume (cc): 110cc

Cylinder Head Style: Assembled

Cylinder Head Material: Aluminum

Intake Port Shape: Oval

Intake Valve Diameter (in.): 2.190 in.

CNC-Machined Combustion Chamber: No

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.

Camshaft Style: Solid flat tappet

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 in.-20

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

Cylinder Head Color: Natural

Steam Holes Drilled: No

Oiling Style: Through pushrod

Machined for O-Ring: No

Heat Crossover: No

Quantity: Sold individually.

Notes: 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.

PDF-Installation Instructions

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