Hedman Hedders Authorized Dealer

SILVER E.O. HEADERS For 71-91 GM 283-400 CLASS C VANS With A.I.R.

Name: SILVER E.O. HEADERS For 71-91 GM 283-400 CLASS C VANS With A.I.R.
Brand: Hedman Hedders
SKU: 107347130

Part Number 66061 (107347130)

Unavailable

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Description

Standard-Duty Silver Ceramic, 50-State Legal, Long-Tube Headers For 1971-91 CHEVY/GMC Class C Conversion Vans/Motorhomes with 283-400 SB Chevy Engine w/A.I.R. (Centered Engine Chassis Only); 1-5/8 in. Long 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.

1971-1973 GMC G35/G3500 Van
1971-1974 Chevrolet G10 Van
1971-1974 Chevrolet G20 Van
1971-1974 Chevrolet G30 Van
1971-1974 GMC G15/G1500 Van
1971-1974 GMC G25/G2500 Van
1975-1978 GMC G15
1975-1978 GMC G25
1975-1978 GMC G35
1975-1991 Chevrolet G10
1975-1991 Chevrolet G20
1975-1991 Chevrolet G30
1979-1991 GMC G1500
1979-1991 GMC G2500
1979-1991 GMC G3500

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

<i>COATED HEADERS DURING ENGINE BREAK-IN PERIOD</i>	<I><B><div style="background-color:red;color:white;padding:1%;">CLICK FOR IMPORTANT INFO REGARDING HEADER COATINGS DURING ENGINE BREAK-IN!</div></I></b>
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	Header(s), new bolts, gasket(s) to head, reducer(s) and hardware, instructions
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	HTC Polished Silver Ceramic-Metallic
Finish Type	HTC SILVER (polished) Ceramic-metallic Coating
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	HTC Polished Silver Ceramic-Metallic
Header Material	Mild Steel
Header Port Shape	Round Port
Header Style	Long Tube
Installation Hardware Included	Yes
Manual Transmission - Column	Yes
Manual Transmission - Floor	Yes
Material	Mild Steel
Motor Mounts Included	No
Mounting Hardware Included	Yes
Notes	71-91 Chev. C-Class Motorhome, Van 283-400 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)	1.625 in.
Primary Tube Gauge	16g
Quantity	Sold as a pair.
Reducer Outlet Size	2-1/2 in.
Reducers Included	Yes
Replacement Gasket	27500
Replacement Head Flange Gasket	27500
Street Legal	Yes
Tube Design	Standard
Tube Diameter	1-5/8 in.
Tube Length	Long Tubes
Tube Material Thickness	16g
Tube Size	1-5/8 in.
Tube Style	Long Tubes
Tuned	No
Variations	69061, 69861
Weld-Up	No
With A.I.R. System	Yes
With EGR	No
Y-Pipe Included	No

Videos and guides

Technical Bulletin PDF Buyers Guide PDF Brochure PDF

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)).