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Vehicle Info NeededHEDMANPART NUMBER: 500-66287
Standard Duty HTC Coated Full-Length Headers 1982-86 GM K-Series Truck/SUV 396/454
$65399
Ships on Sep 07, 2026
Lowest Price GuaranteeGM Trucks
- Standard Duty HTC Coated Full-Length Headers
- 1982-86 GM K-Series Truck/SUV 396/454
- 1-3/4" Tube, 3" Collector
- Without smog injection or injection heads
- Due to cylinder heads (aluminum), Generation 6 BB-Chevy 502 will have clearance problems on some applications. Bottom of header flanges may hit head bolts. Notching may be necessary.
- Includes parts necessary to retain 50-state emission devices
- Not legal for sale or use in California on pollution-controlled vehicles
- Modification to stock exhaust required to retain catalytic converter
- For 1964-74 vehicles without A.I.R. system (considered OE replacement when existing emission controls are not removed from vehicle)
- EO#D167-27Applications
- 1982-86 Chevy K20
- 1982-86 GMC Jimmy & K2500
- 1985 Chevy K20 Suburban
Part TypeHeader
BrandHEDMAN
Package Height8.25
Package Width16.5
Package Length39.0
Weight30.0 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 Diameter1.75 in (44.5 mm)
Vendor Part Number66287
Package Qty1
Package TypeEA
No Questions
No Reviews
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Some parts are not legal for use in California or other states with similar laws / regulations
