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Vehicle Info NeededHEDMANPART NUMBER: 500-66097
Standard Duty HTC Coated Full-Length Headers 1967-91 GM C/K Series Truck/SUV 283-400
$64999
Ships on 10/07/2026
Lowest Price GuaranteeGM Trucks
- Standard Duty HTC Coated Full-Length Headers
- 1967-91 GM C/K Series Truck/SUV 283-400
- 1-5/8" Tube, 3" Collector
- Vehicles equipped with large piston AC compressors require the use of bracket #500-20110
- Without smog injection or injection heads
- Must modify rotary A/C bracket
- Will fit angle plug heads (Chevy aluminum only)
- Designed for use with Trans-Dapt throttle body spacer
- Includes parts necessary to retain emission devices (50-state legal for 1975-91 only)
- 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#D167-27
Part TypeHeader
BrandHEDMAN
Package Height9.5
Package Width16.5
Package Length39.5
Weight30.35 PG
Part CategoryPerformance Parts
Carb Eo NumberD-167-26 (pdf)
Header FinishSilver ceramic coated
Tube DirectionDown Swept
QuantitySold as a pair
Bolts/Studs IncludedYes
Cylinder Head Port ShapeOval
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 Number66097
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
