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Hedman Hedders HD Black Long-Tube EO Headers 63821 fits 1968 1969 1973 1974 1976 Chevrolet / GMC

⚠️ Please verify fitment before purchasing. Check the fitment chart below or use the Year/Make/Model tool to confirm this part fits your vehicle.

⚠️ Verify fitment before purchasing. Check the fitment chart below or click the 3 lines in the top left menu, select Home, then use the Year/Make/Model guide.

Hedman Hedders
63821
Out of stock
$2,201.02 USD $1,074.99 USD
Hedman Hedders HD Black Long-Tube EO Headers 63821 fits 1968 1969 1973 1974 1976 Chevrolet / GMC
Description
Heavy-Duty BLACK ELITE, Long Tube, Headers For 1967-87 CHEVY/GMC 2WD & 4WD 1/2 to 1 Ton Pick-Up Truck, Blazer, SUV with 396-502 BB Chevy with A.I.R. (Centered Engine Chassis Only); 1-3/4 in. Long Tubes; 3 in. Ball/Socket Collector


Specifications:

Description_DEF [B@5b0a09ec
Description_DES [B@7bfa9d86
Description_EXT [B@7e4a608f
Description_FAB [B@20cdaf50
Description_FAB [B@2b8397cc
Description_FAB [B@4ba3997
Description_FAB [B@29d97f97
Description_FAB [B@64a3f2d3
Description_FAB [B@5329347c
Description_INV [B@60ad90f
Description_SHO [B@644d2b9e
Tube Diameter 1-3/4 in.
Header Construction MILD STEEL- ELITE Heavy-Duty
Replacement Gasket 27550
Replacement Head Flange Gasket 27550
California Proposition 65 WARNING: Cancer & Reproductive Harm. For more info visit www.P65Warnings.ca.gov
Tube Style Long Tubes
Air Conditioning Yes
Automatic Transmission - Column Yes
Automatic Transmission - Floor Yes
Manual Transmission - Column Yes
Manual Transmission - Floor Yes
Power Steering Yes
Title HEDMAN HEDDERS ELITE CHEVY MOTOR HM SMOG EO- BLACK MAXX
Tube Size 1-3/4 in.
Y-Pipe Included No
Quantity Sold as a pair.
Primary Tube Gauge 14g
Primary Tube Diameter (in) 1.75 in.
Package Contents Headers, ball and socket reducers (exhaust adapters), gaskets, mounting hardware
Header Material Mild Steel
Header Finish BLACK MAXX Satin Black Ceramic-Metallic
Cylinder Head Port Shape Square
Cylinder Head Stock Profile Heads
Variations 66111, 69821
Tube Material Thickness 14g
Exhaust System Dia 2-1/2 in.
Clutch Notes Must use 1975 and later model clutch linkage located at rear of engine. (139)
Chassis Compatibility NOT For Vehicles With Offset (right) Engine Position!
Collector Attachment 3 in.
Collector Diameter 3 in.
Collector Size 3 in.
Collector Style BALL and SOCKET Style (Gasketless)
Reducer Outlet Size 2-1/2 in.
Contents Header(s), new bolts, gasket(s) to head, reducer(s) and hardware, instructions
Tube Length Long Tubes
Drivetrain 2WD
E.O. # No
Emissions Notes Not currently legal for sale or use in California. Please call for status update
Finish BLACK MAXX Satin Black Ceramic-Metallic
Finish Type BLACK MAXX- Black Ceramic-Metallic Coating
Flange Style Standard
Flange Thickness 0.375 in.
Header Port Shape Square
Header Style Long Tube
Key Feature With A.I.R.
Port Shape Square
Material Mild Steel
Tube Design Standard
Mounting Hardware Included Yes
with A.I.R. System Yes
with EGR No
Weld-Up No
Tuned No
Bolts/Studs Included Yes
Catalytic Converter(s) Included No
Collector Bolts Included Yes
Crossover Pipe Included No
Gasket Or Seal Included Yes
Header Fasteners Included Yes
Installation Hardware Included Yes
Motor Mounts Included No
Reducers Included Yes


This Part Fits:

Year Make Model Submodel Engine
1975-1978 GMC C25 Base Cab & Chassis 2-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1975-1978 GMC C25 Base Cab & Chassis 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1975-1978 GMC C25 Base Crew Cab Pickup 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1975-1978 GMC C25 Base Standard Cab Pickup 2-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1975-1978 GMC C25 Suburban Base Sport Utility 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1975-1978 GMC C25 Suburban Base Sport Utility 4-Door 4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated
1975-1978 GMC C25 Suburban Base Sport Utility 4-Door 5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated
1975-1978 GMC C35 Base Cab & Chassis 2-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1975-1978 GMC C35 Base Cab & Chassis 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1975-1978 GMC C35 Base Crew Cab Pickup 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1975-1978 GMC C35 Base Standard Cab Pickup 2-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1975-1980 Chevrolet C20 Cheyenne Cab & Chassis 2-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1975-1980 Chevrolet C20 Cheyenne Cab & Chassis 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1975-1980 Chevrolet C20 Cheyenne Crew Cab Pickup 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1975-1980 Chevrolet C20 Cheyenne Standard Cab Pickup 2-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1975-1980 Chevrolet C20 Suburban Custom Deluxe Sport Utility 4-Door 5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated
1975-1980 Chevrolet C20 Suburban Custom Deluxe Sport Utility 4-Door 4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated
1975-1980 Chevrolet C20 Suburban Custom Deluxe Sport Utility 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1975-1980 Chevrolet C30 Cheyenne Cab & Chassis 2-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1975-1980 Chevrolet C30 Cheyenne Cab & Chassis 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1975-1980 Chevrolet C30 Cheyenne Crew Cab Pickup 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1975-1980 Chevrolet C30 Cheyenne Standard Cab Pickup 2-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1975-1980 Chevrolet K20 Suburban Custom Deluxe Sport Utility 4-Door 6.6L 400Cu. In. V8 GAS OHV Naturally Aspirated
1975-1980 Chevrolet K20 Suburban Custom Deluxe Sport Utility 4-Door 5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated
1975-1980 Chevrolet K20 Suburban Custom Deluxe Sport Utility 4-Door 4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated
1975-1995 Chevrolet P30 Base Stripped Chassis 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1976 GMC Jimmy Base Sport Utility 2-Door 4.1L 250Cu. In. l6 GAS OHV Naturally Aspirated
1976 GMC Jimmy Base Sport Utility 2-Door 5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated
1976 GMC Jimmy Base Sport Utility 2-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1976 GMC Jimmy Base Sport Utility 2-Door 6.6L 400Cu. In. V8 GAS OHV Naturally Aspirated
1976-1977 GMC K25 Suburban Base Sport Utility 4-Door 5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated
1976-1977 GMC K25 Suburban Base Sport Utility 4-Door 4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated
1976-1977 GMC K25 Suburban Base Sport Utility 4-Door 6.6L 400Cu. In. V8 GAS OHV Naturally Aspirated
1976-1977 GMC K25 Suburban Base Sport Utility 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1976-1980 Chevrolet C20 Suburban Custom Deluxe Sport Utility 4-Door 6.6L 400Cu. In. V8 GAS OHV Naturally Aspirated
1977 GMC K25 Suburban Base Sport Utility 4-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1977-1978 Chevrolet K20 Suburban Custom Deluxe Sport Utility 4-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1977-1978 GMC C25 Suburban Base Sport Utility 4-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1977-1979 Chevrolet C20 Suburban Custom Deluxe Sport Utility 4-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1978 GMC C25 Suburban Base Sport Utility 4-Door 6.6L 400Cu. In. V8 GAS OHV Naturally Aspirated
1979-1982 GMC C2500 Base Cab & Chassis 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1979-1982,1984 GMC C2500 Suburban Base Sport Utility 4-Door 4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated
1979-1986 GMC C2500 Base Cab & Chassis 2-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1979-1986 GMC C2500 Base Crew Cab Pickup 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1979-1986 GMC C2500 Base Standard Cab Pickup 2-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1979-1986 GMC C2500 Suburban Base Sport Utility 4-Door 5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated
1979-1986 GMC C2500 Suburban Base Sport Utility 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1979-1986 GMC C3500 Base Cab & Chassis 2-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1979-1986 GMC C3500 Base Cab & Chassis 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1979-1986 GMC C3500 Base Crew Cab Pickup 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1979-1986 GMC C3500 Base Standard Cab Pickup 2-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1980 GMC C2500 Suburban Base Sport Utility 4-Door 6.6L 400Cu. In. V8 GAS OHV Naturally Aspirated
1981-1982 Chevrolet C20 Custom Cab & Chassis 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1981-1982 Chevrolet C20 Suburban Custom Sport Utility 4-Door 4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated
1981-1982 Chevrolet K20 Suburban Custom Sport Utility 4-Door 4.8L 292Cu. In. l6 GAS OHV Naturally Aspirated
1981-1986 Chevrolet C20 Custom Cab & Chassis 2-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1981-1986 Chevrolet C20 Custom Crew Cab Pickup 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1981-1986 Chevrolet C20 Custom Standard Cab Pickup 2-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1981-1986 Chevrolet C20 Suburban Custom Sport Utility 4-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1981-1986 Chevrolet C20 Suburban Custom Sport Utility 4-Door 5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated
1981-1986 Chevrolet C20 Suburban Custom Sport Utility 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1981-1986 Chevrolet C30 Custom Cab & Chassis 2-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1981-1986 Chevrolet C30 Custom Cab & Chassis 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1981-1986 Chevrolet C30 Custom Crew Cab Pickup 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1981-1986 Chevrolet C30 Custom Standard Cab Pickup 2-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1981-1986 Chevrolet K20 Suburban Custom Sport Utility 4-Door 5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated
1982-1986 GMC C2500 Suburban Base Sport Utility 4-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1985 Chevrolet K20 Suburban Custom Sport Utility 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1985-1986 Chevrolet K20 Suburban Custom Sport Utility 4-Door 5.0L 305Cu. In. V8 GAS OHV Naturally Aspirated
1986 GMC C2500 Base Extended Cab Pickup 2-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1986 GMC C3500 Base Extended Cab Pickup 2-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1987 Chevrolet R20 Suburban Custom Deluxe Sport Utility 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1987 Chevrolet R20 Suburban Custom Deluxe Sport Utility 4-Door 5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated
1987 Chevrolet V20 Suburban Custom Deluxe Sport Utility 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1987 Chevrolet V20 Suburban Custom Deluxe Sport Utility 4-Door 5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated
1987-1991 GMC R2500 Suburban Base Sport Utility 4-Door 5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated
1987-1991 GMC R2500 Suburban Base Sport Utility 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1988 Chevrolet R20 Suburban Scottsdale Sport Utility 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1988 Chevrolet R20 Suburban Scottsdale Sport Utility 4-Door 5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated
1988 Chevrolet V20 Suburban Scottsdale Sport Utility 4-Door 5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated
1988 Chevrolet V20 Suburban Scottsdale Sport Utility 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1989-1991 Chevrolet R2500 Suburban Scottsdale Sport Utility 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1989-1991 Chevrolet R2500 Suburban Scottsdale Sport Utility 4-Door 5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated
1990 Chevrolet V2500 Suburban Scottsdale Sport Utility 4-Door 5.7L 350Cu. In. V8 GAS OHV Naturally Aspirated
1990 Chevrolet V2500 Suburban Scottsdale Sport Utility 4-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
1991-1995 Chevrolet P30 Base Cab & Chassis 2-Door 7.4L 454Cu. In. V8 GAS OHV Naturally Aspirated
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