Home / Shop / Hedman Elite Extreme-Duty Headers 63850 Headers, Extreme-Duty, Long Tube, Steel, Black Ceramic Coated, Chevy, GMC, 7.4L/454, Pair

Hedman Elite Extreme-Duty Headers 63850 Headers, Extreme-Duty, Long Tube, Steel, Black Ceramic Coated, Chevy, GMC, 7.4L/454, Pair

SKU: HED63850

Headers

Hedman Hedders

Hedman Elite Extreme-Duty Headers 63850 Headers, Extreme-Duty, Long Tube, Steel, Black Ceramic Coated, Chevy, GMC, 7.4L/454, Pair

SKU: HED63850

Headers

Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

We accept

Description

If you think you are tough on your performance parts, but stainless is not in your budget, then Hedman Elite extreme-duty headers may be the right fit for you project. Their heavier duty construction takes the punishment, and their quality design dishes out the power! They feature thick wall 14-gauge mild steel primary tubes with 3/8 in. flanges to prevent warping for a longer lasting, leak-free seal. Hedman Elite extreme-duty headers are available with the matte silver or Black Maxx ceramic coatings that withstand temperatures up to 1,400 degrees F.

Part Type

Headers

Data: v4.2 - Upd: 2026-10-01 05:01:33

Specifications

Product Attributes - Brand: Hedman Hedders
Product Attributes - Manufacturer's Part Number: 63850
Product Attributes - Part Type: Headers
Product Attributes - Product Line: Hedman Elite Extreme-Duty Headers
Product Attributes - UPC: 732611638500
Product Attributes - Header Style: Long tube one-piece
Product Attributes - Header Material: Steel
Product Attributes - Primary Tube Outside Diameter (in.): 1 3/4 in.
Product Attributes - Header Color: Black ceramic coated
Product Attributes - Flange Style: Standard
Product Attributes - Weld-Up: No
Product Attributes - Cylinder Head Port Shape: Square
Product Attributes - Collector Attachment: Ball and socket flange
Product Attributes - Collector Diameter (in.): 3.00
Product Attributes - Collector Reducers Included: Yes
Product Attributes - Collector Reducer Exit Diameter: 2.500 in.
Product Attributes - Tuned: No
Product Attributes - Primary Tube Gauge: 14-gauge
Product Attributes - Flange Thickness (in.): 0.38 in.
Product Attributes - Bolts/Studs Included: Yes
Product Attributes - Gaskets Included: Yes
Product Attributes - Crossover Pipe Included: No
Product Attributes - Catalytic Converter(s) Included: No
Product Attributes - Motor Mounts Included: No
Product Attributes - Transmission Mount Included: No
Product Attributes - Quantity: Sold as a pair.

Reference Information

Brand Name/s	Hedman Hedders
StreetFX SKU	hed63850
SFX Item ID	5070509
Supplier Item Code	5070509
Manufacturer SKU	63850
Manufacturer UPC	732611638500
Alternative References	7.4L/454

Compatibility

Application Data

Make	CHEVROLET
Model	C2500
Submodel	BASE
Beginning Year	1994
Ending Year	1995
Engine Type	V8
Engine Family	Chevy big block Gen V
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

Make	CHEVROLET
Model	C2500
Submodel	CHEYENNE
Beginning Year	1991
Ending Year	1995
Engine Type	V8
Engine Family	Chevy big block Gen V
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

Make	CHEVROLET
Model	C2500
Submodel	SILVERADO
Beginning Year	1991
Ending Year	1995
Engine Type	V8
Engine Family	Chevy big block Gen V
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

Make	CHEVROLET
Model	C2500
Submodel	WT
Beginning Year	1994
Ending Year	1995
Engine Type	V8
Engine Family	Chevy big block Gen V
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

Make	CHEVROLET
Model	C3500
Submodel	BASE
Beginning Year	1994
Ending Year	1995
Engine Type	V8
Engine Family	Chevy big block Gen V
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

Make	CHEVROLET
Model	C3500
Submodel	CHEYENNE
Beginning Year	1988
Ending Year	1990
Engine Type	V8
Engine Family	Chevy big block Mark IV
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

Make	CHEVROLET
Model	C3500
Submodel	CHEYENNE
Beginning Year	1991
Ending Year	1995
Engine Type	V8
Engine Family	Chevy big block Gen V
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

Make	CHEVROLET
Model	C3500
Submodel	SCOTTSDALE
Beginning Year	1988
Ending Year	1990
Engine Type	V8
Engine Family	Chevy big block Mark IV
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

Make	CHEVROLET
Model	C3500
Submodel	SILVERADO
Beginning Year	1988
Ending Year	1990
Engine Type	V8
Engine Family	Chevy big block Mark IV
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

Make	CHEVROLET
Model	C3500
Submodel	SILVERADO
Beginning Year	1991
Ending Year	1995
Engine Type	V8
Engine Family	Chevy big block Gen V
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

Make	GMC
Model	C2500
Submodel	SIERRA
Beginning Year	1991
Ending Year	1993
Engine Type	V8
Engine Family	Chevy big block Gen V
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

Make	GMC
Model	C2500
Submodel	SIERRA SL
Beginning Year	1994
Ending Year	1995
Engine Type	V8
Engine Family	Chevy big block Gen V
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

Make	GMC
Model	C2500
Submodel	SIERRA SLE
Beginning Year	1991
Ending Year	1995
Engine Type	V8
Engine Family	Chevy big block Gen V
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

Make	GMC
Model	C2500
Submodel	SIERRA SLT
Beginning Year	1994
Ending Year	1995
Engine Type	V8
Engine Family	Chevy big block Gen V
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

Make	GMC
Model	C2500
Submodel	SIERRA SLX
Beginning Year	1991
Ending Year	1993
Engine Type	V8
Engine Family	Chevy big block Gen V
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

Make	GMC
Model	C3500
Submodel	SIERRA
Beginning Year	1988
Ending Year	1990
Engine Type	V8
Engine Family	Chevy big block Mark IV
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

Make	GMC
Model	C3500
Submodel	SIERRA
Beginning Year	1991
Ending Year	1993
Engine Type	V8
Engine Family	Chevy big block Gen V
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

Make	GMC
Model	C3500
Submodel	SIERRA SL
Beginning Year	1994
Ending Year	1995
Engine Type	V8
Engine Family	Chevy big block Gen V
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

Make	GMC
Model	C3500
Submodel	SIERRA SLE
Beginning Year	1988
Ending Year	1990
Engine Type	V8
Engine Family	Chevy big block Mark IV
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

Make	GMC
Model	C3500
Submodel	SIERRA SLE
Beginning Year	1991
Ending Year	1995
Engine Type	V8
Engine Family	Chevy big block Gen V
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

Make	GMC
Model	C3500
Submodel	SIERRA SLT
Beginning Year	1994
Ending Year	1995
Engine Type	V8
Engine Family	Chevy big block Gen V
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

Make	GMC
Model	C3500
Submodel	SIERRA SLX
Beginning Year	1988
Ending Year	1990
Engine Type	V8
Engine Family	Chevy big block Mark IV
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

Make	GMC
Model	C3500
Submodel	SIERRA SLX
Beginning Year	1991
Ending Year	1993
Engine Type	V8
Engine Family	Chevy big block Gen V
Engine Size	7.4L/454
Drivetrain	RWD
Power Steering	Yes
Power Brakes (application)	Yes
Air Conditioning	Yes
Standard Transmission Column Shift	No
Standard Transmission Floor Shift	Yes
Automatic Transmission Column Shift	Yes
Automatic Transmission Floor Shift	Yes
Footnotes	D - Not legal for sale or use in California. 1 - Without smog injection or injection heads. 6 - Modification to stock exhaust required to retain catalytic converter. 45 - Not legal for sale or use in California on pollution-controlled motor vehicles. 127 - Late model chassis. Engine offset to passenger side of vehicle. 208 - Chevy 502 big block generation 6 engines with aluminum cylinder heads will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary. 213 - Elite replacement gasket HED-27550. B - Not applicable or intended for street/highway use. Legal for racing vehicles which may never be used upon a highway.

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Hedman Elite Extreme-Duty Headers 63850 Headers, Extreme-Duty, Long Tube, Steel, Black Ceramic Coated, Chevy, GMC, 7.4L/454, Pair

Hedman Elite Extreme-Duty Headers 63850 Headers, Extreme-Duty, Long Tube, Steel, Black Ceramic Coated, Chevy, GMC, 7.4L/454, Pair

Description

Part Type

Specifications

Reference Information

Compatibility

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