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Hedman Hedders Authorized Dealer

LONG-TUBE E.O. HEADERS For '67-91 GM 1 TON 4WD 7.4L TRUCKS With A.I.R.

Part Number 69381 (107347435)
Unavailable
Select vehicle for guaranteed fit

Description

Standard-Duty Uncoated, Long Tube, 50-State Headers For 1967-87 CHEVY/GMC 4WD 1 Ton (only) Pick-Up Truck; 7.4L Chevy Engine With A.I.R. (Centered Engine Chassis Only); 1-3/4 in. Tubes; 3 in. Ball/Socket Collector

Hedman Hedders, began as a one man shop in 1954. Bob Hedman, founder of Hedman Hedders, sold his highly sought after exhaust tubes to fellow racers on the salt flats of the Mojave Desert. But, what started out as a way to make a few bucks to pay for Bob's racing hobby, quickly turned into the premier header manufacturer for both the racing and street header marketplaces.\n\nOriginally designed for straightline drag racers, word spread quickly about Hedman's reputation for building headers that gave you the best boost in power for your dollar. It wasn't long before Hedman Hedders was the brand of choice among racing's elite engine builders, racers and race series. Familiar names like Don Garlits, Warren Johnson, Shirley Muldowney, Bob Chandler and his BIG FOOT Race Team, and the IROC series.\n\nHedman Hedders constantly reshapes itself to meet environmental requirements and incorporates computer technology to ensure that its products offer the best performance improvement.\n\nWhether you're a Pro or sportsman racer, Hedman Hedders builds your headers with one goal in mind, optimum performance. Even if you're not a racer, the lessons Hedman learns at the track and on the dyno, make it into every street header we design.

Fitment

This part fits the following vehicles.

  • 1982-1986, 1988-1991 GMC K3500
  • 1982-1986 Chevrolet K30
  • 1988-1991 Chevrolet K3500

Features & benefits

  • Handcrafted, Mild Steel Construction.
  • Long Tube Header Design Provides Excellent Top-End Horsepower and Torque.
  • Ball & Socket Collector Design requires No Gasket, and Allows For More Exhaust System Misalignment than Old School, Gasket-Style Header Collectors
  • Includes All The Necessary Mounting Hardware, Gaskets and Reducers (exhaust adapters)
  • Limted Lifetime Warranty On Construction, Five Year Warranty on Factory-Applied Header Coating!
  • Proud To Say, Made In The USA, Since 1954!

Specifications

Air Conditioning Yes
Automatic Transmission - Column Yes
Automatic Transmission - Floor Yes
Bolts/Studs Included Yes
Catalytic Converter(s) Included No
Collector Attachment 3 in.
Collector Bolts Included Yes
Collector Diameter 3 in.
Collector Size 3 in.
Collector Style BALL and SOCKET Style (Gasketless)
Contents headers, gaskets (when applicable), 3-bolt exhaust adapters, hardware
Country Of Origin US
Crossover Pipe Included No
Cylinder Head Stock Profile Heads
Cylinder Head Port Shape Round
E.O. # Yes
Emissions Notes EO# D167-33 (click here for covered vehicles in document on ARB.CA.GOV website)
Exhaust System Dia 2-1/2 in.
Finish Uncoated
Finish Type UNCOATED Mild Steel! Shipped with Temporary Paint.
Flange Style Standard
Flange Thickness 0.3125 in.
Gasket Or Seal Included Yes
Header Construction MILD STEEL- Standard-Duty
Header Fasteners Included Yes
Header Finish Uncoated
Header Material Mild Steel
Header Port Shape Round Port
Header Style Long Tube
Installation Hardware Included Yes
Manual Transmission - Column No
Manual Transmission - Floor Yes
Material Mild Steel
Motor Mounts Included No
Mounting Hardware Included Yes
Notes 67-91 Chev. 1/2, 3/4, 1 Ton Truck 396-502 w/A.I.R.
Package Contents Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware
Port Shape Round
Power Steering Yes
Primary Tube Diameter (in) 1.75 in.
Primary Tube Gauge 16g
Quantity Sold as a pair.
Reducer Outlet Size 2-1/2 in.
Reducers Included Yes
Replacement Gasket 27530
Replacement Head Flange Gasket 27530
Street Legal Yes
Tube Design Standard
Tube Diameter 1-3/4 in.
Tube Length Long Tubes
Tube Material Thickness 16g
Tube Size 1-3/4 in.
Tube Style Long Tubes
Tuned No
Variations 66381
Weld-Up No
With A.I.R. System Yes
With EGR No
Y-Pipe Included No

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Magnuson-Moss Warranty Act

Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)).

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