Hedman Standard Duty Uncoated Full Length Headers for 1963-82 Corvette 283-400
500-68280

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GM Cars
Specifications:
Each set uses mild steel, smooth flowing, CNC mandrel bent tubes, that are hand-welded to ensure each pair is identical to the next. Hedman's unique, gasketless ball and socket collector design allows your vehicle's exhaust system to bolt up, even if it is not perfectly aligned with the header collectors. These headers are uncoated, and ship from the factory with a temporary black paint that will burn off when submitted to normal operating temperatures. Each set includes a pair of gaskets, header flange bolts and collector bolts. No collector gasket is needed. For the ultimate protection from the elements, click the following link to view Hedman's own HTC Hi-Tech Coated Headers.
Does Hedman 68280 fit your vehicle?
1980 CHEVROLET CORVETTE
- Liter: 5
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Air Conditioning: 1970 or later only- A/C equipped vehicles require bracket 20110.(Large piston compressor).; Power Steering: Yes; Auto Transmission - Column: Yes; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (1) Without smog injection or injection heads.; Footnotes: (9) Factory side exhaust cut and welding is required.; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.; Engine Family: SB Chevy 283-400 (Gen 1)
- CUI: 305
- Engine Type: V8 ( 5L / 305 )
- Engine Vin: H
1974 CHEVROLET CORVETTE
- Liter: 5.7
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Air Conditioning: 1970 or later only- A/C equipped vehicles require bracket 20110.(Large piston compressor).; Power Steering: Yes; Auto Transmission - Column: Yes; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (1) Without smog injection or injection heads.; Footnotes: (9) Factory side exhaust cut and welding is required.; Emissions Notes: 1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.; Engine Family: SB Chevy 283-400 (Gen 1)
- CUI: 350
- Engine Type: V8 ( 5.7L / 350 )
- Engine Vin: J
1973 CHEVROLET CORVETTE
- Liter: 5.7
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Air Conditioning: 1970 or later only- A/C equipped vehicles require bracket 20110.(Large piston compressor).; Power Steering: Yes; Auto Transmission - Column: Yes; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (1) Without smog injection or injection heads.; Footnotes: (9) Factory side exhaust cut and welding is required.; Emissions Notes: 1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.; Engine Family: SB Chevy 283-400 (Gen 1)
- CUI: 350
- Engine Type: V8 ( 5.7L / 350 )
- Engine Vin: K
1977 CHEVROLET CORVETTE
- Liter: 5.7
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Air Conditioning: 1970 or later only- A/C equipped vehicles require bracket 20110.(Large piston compressor).; Power Steering: Yes; Auto Transmission - Column: Yes; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (1) Without smog injection or injection heads.; Footnotes: (9) Factory side exhaust cut and welding is required.; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.; Engine Family: SB Chevy 283-400 (Gen 1)
- CUI: 350
- Engine Type: V8 ( 5.7L / 350 )
- Engine Vin: L
1973 CHEVROLET CORVETTE
- Liter: 5.7
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Air Conditioning: 1970 or later only- A/C equipped vehicles require bracket 20110.(Large piston compressor).; Power Steering: Yes; Auto Transmission - Column: Yes; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (1) Without smog injection or injection heads.; Footnotes: (9) Factory side exhaust cut and welding is required.; Emissions Notes: 1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.; Engine Family: SB Chevy 283-400 (Gen 1)
- CUI: 350
- Engine Type: V8 ( 5.7L / 350 )
- Engine Vin: J
1976 CHEVROLET CORVETTE
- Liter: 5.7
- SubModel: STINGRAY
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Air Conditioning: 1970 or later only- A/C equipped vehicles require bracket 20110.(Large piston compressor).; Power Steering: Yes; Auto Transmission - Column: Yes; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (1) Without smog injection or injection heads.; Footnotes: (9) Factory side exhaust cut and welding is required.; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.; Engine Family: SB Chevy 283-400 (Gen 1)
- CUI: 350
- Engine Type: V8 ( 5.7L / 350 )
- Engine Vin: L
1974 CHEVROLET CORVETTE
- Liter: 5.7
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Air Conditioning: 1970 or later only- A/C equipped vehicles require bracket 20110.(Large piston compressor).; Power Steering: Yes; Auto Transmission - Column: Yes; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (1) Without smog injection or injection heads.; Footnotes: (9) Factory side exhaust cut and welding is required.; Emissions Notes: 1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.; Engine Family: SB Chevy 283-400 (Gen 1)
- CUI: 350
- Engine Type: V8 ( 5.7L / 350 )
- Engine Vin: K
1978 CHEVROLET CORVETTE
- Liter: 5.7
- SubModel: SILVER ANNIVERSARY EDITION
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Air Conditioning: 1970 or later only- A/C equipped vehicles require bracket 20110.(Large piston compressor).; Power Steering: Yes; Auto Transmission - Column: Yes; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (1) Without smog injection or injection heads.; Footnotes: (9) Factory side exhaust cut and welding is required.; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.; Engine Family: SB Chevy 283-400 (Gen 1)
- CUI: 350
- Engine Type: V8 ( 5.7L / 350 )
- Engine Vin: L
1976 CHEVROLET CORVETTE
- Liter: 5.7
- SubModel: STINGRAY
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Air Conditioning: 1970 or later only- A/C equipped vehicles require bracket 20110.(Large piston compressor).; Power Steering: Yes; Auto Transmission - Column: Yes; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (1) Without smog injection or injection heads.; Footnotes: (9) Factory side exhaust cut and welding is required.; Emissions Notes: RACE ONLY! NOT LEGAL for public street or highway use on '75-later vehicles.; Engine Family: SB Chevy 283-400 (Gen 1)
- CUI: 350
- Engine Type: V8 ( 5.7L / 350 )
- Engine Vin: X
1972 CHEVROLET CORVETTE
- Liter: 5.7
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Air Conditioning: 1970 or later only- A/C equipped vehicles require bracket 20110.(Large piston compressor).; Power Steering: Yes; Auto Transmission - Column: Yes; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (1) Without smog injection or injection heads.; Footnotes: (9) Factory side exhaust cut and welding is required.; Emissions Notes: 1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.; Engine Family: SB Chevy 283-400 (Gen 1)
- CUI: 350
- Engine Type: V8 ( 5.7L / 350 )
- Engine Vin: J
1963 CHEVROLET CORVETTE
- Liter: 5.3
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Air Conditioning: 1970 or later only- A/C equipped vehicles require bracket 20110.(Large piston compressor).; Power Steering: Yes; Auto Transmission - Column: Yes; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (1) Without smog injection or injection heads.; Footnotes: (9) Factory side exhaust cut and welding is required.; Emissions Notes: 1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.; Engine Family: SB Chevy 283-400 (Gen 1)
- CUI: 327
- Engine Type: V8 ( 5.3L / 327 )
- Engine Vin: -
1974 CHEVROLET CORVETTE
- Liter: 5.7
- SubModel: BASE
- Aspiration: NATURALLY ASPIRATED
- Fitment Notes: Air Conditioning: 1970 or later only- A/C equipped vehicles require bracket 20110.(Large piston compressor).; Power Steering: Yes; Auto Transmission - Column: Yes; Auto Transmission - Floor: Yes; Manual Transmission - Column: No; Manual Transmission - Floor: Yes; Footnotes: (1) Without smog injection or injection heads.; Footnotes: (9) Factory side exhaust cut and welding is required.; Emissions Notes: 1974 and earlier vehicles WITHOUT A.I.R.: Legal for use on '74-earlier vehicles without A.I.R.. Considered OEM replacement part, and do not require EO, when existing emission controls are not removed.; Engine Family: SB Chevy 283-400 (Gen 1)
- CUI: 350
- Engine Type: V8 ( 5.7L / 350 )
- Engine Vin: L
Motor Vehicles
WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.
Tools:
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Electrical Cords
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