Hedman 69110 - Hedman Hedders Standard-Duty Uncoated Headers

Hedman #500-69110

Standard Duty Uncoated Full Length Headers

1968-91 Chevy/GMC Pickup, Blazer, Jimmy, Suburban

396-502ci

Tube Size: 1-3/4"

Collector Size: 3"

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Installation Instructions for Hedman 69110 - Hedman Hedders Standard-Duty Uncoated Headers

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Complete list of Hedman Hedders Standard-Duty Uncoated Headers

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Hedman 69110 - Hedman Hedders Standard-Duty Uncoated Headers Details

GM Trucks

1968-87 CHEVROLET,GMC C20 PICKUP, C30 PICKUP, C25/C2500, C30/C3500, R20 PICKUP, R30 PICKUP, R2500 PICKUP, R3500 PICKUP, V20 PICKUP, V30 PICKUP, V2500 PICKUP, V3500 PICKUP 396-502; 2WD

1968-81 CHEVROLET,GMC K25/K2500 396-502; 4WD

1968-81 CHEVROLET,GMC BLAZER, JIMMY 396-502; 4WD, Engine Swap

1968-91 CHEVROLET,GMC BLAZER, JIMMY 396-502; 2WD

1968-91 CHEVROLET,GMC K25/K2500 SUBURBAN, R20 SUBURBAN, R2500 SUBURBAN, V20 SUBURBAN, V2500 SUBURBAN 396-502; 4WD

1968-91 CHEVROLET,GMC C25/C2500 SUBURBAN, C20 SUBURBAN, R20 SUBURBAN, R2500 SUBURBAN, V20 SUBURBAN, V2500 SUBURBAN 396-502; 2WD

1968-87 CHEVROLET, GMC C20 PICKUP, C30 PICKUP, C25/C2500, C35/C3500, R20 PICKUP, R30 PICKUP, R2500 PICKUP, R3500 PICKUP, V20 PICKUP, V30 PICKUP, V2500 PICKUP, V3500 PICKUP 396-502; 2WD

Without smog injection or injection heads.

Must use factory big block chevy hardware & mounts.

Must use 1975 and later model clutch linkage located at rear of engine.

Due to clyinder heads (aluminum) generation 6 engines, 502 BB Chevy will have clearance problems on some applications. Bottom of hedder flanges may hit head bolts. Notching may be necessary.

Elite replacement gasket #27550.

K5 Blazer up to 91.

Not legal for sale or use in California on pollution controlled motor vehicles.

Modification to stock exhaust required to retain catalytic converter.

Not applicable or intended for street or highway use. Legal only for racing vehicles which may never be used upon a highway, check footnotes also.

Not legal for sale or use in California.

Hedman's Standard-duty, Uncoated Hedders are manufactured using 18 gauge, mandrel bent primary tubes (some models built using thicker 16 or 14 gauge tubing), and 1/4 flanges (some models use 3/8" flanges). The factory black paint applied to uncoated hedders is not hi-temp, and is for pre-installation protection only. For the ultimate in protection against the elements, we suggest Hedman's Original HTC coating.
Hedman has two different designs of the standard-duty headers. There is the Standard-Duty and the Tork-Step.
The Tork-Step hedders offer the following advantages:

Improves Combustion Effeciency

Adds Torque Throughout Entire Torque Range

Increases Horsepower Output

Quicker Acceleration Times

Improved Fuel Effeciency

State of the Art in Header Design

Race Exhaust Technology for the Street

A Must Have for any Towing or Wide Open Throttle Applications