Hedman 69230 - Hedman Hedders Standard-Duty Uncoated Headers

Hedman #500-69230

Standard Duty Uncoated Full Length Headers

1967-91 Chevy/GMC Blazer, Jimmy, Pickup, Suburban

4WD; 283-400ci

Tube Size: 1-5/8"

Collector Size: 3"

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Complete list of Hedman Hedders Standard-Duty Uncoated Headers

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Hedman 69230 - Hedman Hedders Standard-Duty Uncoated Headers Details

GM Trucks

1967-91 CHEVROLET,GMC BLAZER, JIMMY, K10 PICKUP, K15/K1500, K20 PICKUP, K25/K2500, R10 PICKUP, R20 PICKUP, R1500 PICKUP, R2500 PICKUP, V10 PICKUP, V20 PICKUP, V1500 PICKUP, V2500 PICKUP 283-400; 4WD

1967-91 CHEVROLET,GMC K10 SUBURBAN, K20 SUBURBAN, K15/K1500 SUBURBAN, K25/K2500 SUBURBAN, R10 SUBURBAN, R20 SUBURBAN, V10 SUBURBAN, V20 SUBURBAN 283-400; 4WD

Without smog injection or injection heads.

Must modify rotary A/C bracket.

Early chassis only.

Elite replacement gasket #27520.

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

Some vehicles may encounter clutch shaft interference when cross shaft location is located under or behind the driver's side rear exhaust port. Use #69092 without A.I.R. Use #69093 with A.I.R. Order Elite #69892.

Modification to stock exhaust required to retain catalytic converter.

This model is recommended for use with lift kits.

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. et #27520.

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