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Vehicle Info NeededHEDMANPART NUMBER: 500-66281
Standard Duty HTC Coated Full-Length Headers 1963-82 Chevy Corvette 283-400
$57499
Ships on 09/11/2026
Lowest Price GuaranteeGM Cars
- Standard Duty HTC Coated Full-Length Headers
- 1963-82 Chevy Corvette 283-400
- 1-5/8" Tube, 3" Collector
- Includes parts necessary to retain 50-state emission devices
- Not legal for sale or use in California on pollution-controlled vehicles
- Factory side exhaust cut and welding is required
- For 1964-74 vehicles with A.I.R. system (considered OE replacement when existing emission controls are not removed from vehicle)
- EO#D167-27
Part TypeHeader
BrandHEDMAN
Package Height14.3
Package Width17.9
Package Length20.7
Weight25.4 PG
Part CategoryPerformance Parts
Carb Eo NumberD-167-26 (pdf)
Header FinishSilver ceramic coated
Tube DirectionDown Swept
QuantitySold as a pair
Bolts/Studs IncludedYes
Transmission Mount IncludedNo
Header MaterialSteel
Gaskets IncludedYes
Weld-UpNo
Collector AttachmentBall and socket flange
Flange StyleStandard
TunedNo
Collector Diameter3 in (76.2 mm)
Motor Mounts IncludedNo
Part FitmentSemi Universal
Reducers IncludedYes
ApplicationAutomotive
Primary Tube Gauge18-gauge
Header StyleFull-length
Cross Over Pipe IncludedNo
Catalytic Converter(S) IncludedNo
Primary Tube Diameter1.625 in (41.3 mm)
Vendor Part Number66281
Package Qty1
Package TypeEA
No Questions
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Some parts are not legal for use in California or other states with similar laws / regulations
