Hedman 68310 - Hedman Hedders Standard-Duty Uncoated Headers

Hedman #500-68310

Standard Duty Uncoated Full Length Headers

1978-87 G-Body 283-400 ci

Tube Size: 1-1/2

Collector Size: 3"

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Installation Instructions for Hedman 68310 - Hedman Hedders Standard-Duty Uncoated Headers

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Complete list of Hedman Hedders Standard-Duty Uncoated Headers

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Hedman 68310 - Hedman Hedders Standard-Duty Uncoated Headers Details

GM Cars

Applications:

1978-87 Chevelle, Malibu, Monte Carlo, El Camino

1978-87 Cutlass

1978-87 Grand Prix

1978-83 Skylark

1978-87 Regal

(283-400ci)

Without Smog injection or injection heads
Modification to stock exhaust required to retain catalytic converter
Not legal for sale or use in California or pollution controlled motor vehicles
Must Modify rotary A/C bracket
Chevy Engine
Elite replacement gasket p/n 500-27520

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