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Standard Duty HTC Coated Full-Length Headers w/A.I.R System for 1963-82 Chevy Corvette 283-400
InfoVehicle Info Needed
HEDMANPART NUMBER: 500-66301

Standard Duty HTC Coated Full-Length Headers w/A.I.R System for 1963-82 Chevy Corvette 283-400

$62999
ShippingShips on 09/14/2026
Lowest PriceLowest Price Guarantee

GM Cars
Standard Duty HTC Coated Full-Length Headers
  • 1963-82 Chevy Corvette 283-400
  • w/A.I.R System
  • 1-5/8" Tube, 3" Collector

    Hedman 66301 Standard Duty HTC Coated Full-Length Headers w/A.I.R System:

    • Compatible with angle plug heads (Chevy aluminum only)
    • Will not fit steering damper inside front crossmember
    • Modification to stock exhaust may be required

    Emissions Note:

    This part is legal for sale and use on Emissions Controlled Vehicles, in all 50 states, when used in accordance with the manufacturer's application guide because it has California Air Resources Board (CARB) Executive Order (EO) number D167-27.

    CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART

    • Part TypeHeader
    BrandHEDMAN
    Package Height10.0
    Package Width19.0
    Package Length40.0
    Weight29.6 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 Number66301
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews
    Please click here to download the instructions PDF file

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