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Hedman 66447

Standard Duty HTC Coated Full-Length Headers 1987-91 Chevy Corvette 283-400

Hedman 66447

500-66447

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Ships 12/15/16 if Ordered Today
Hedman 66447 Standard Duty HTC Coated Full-Length Headers 1987-91 Chevy Corvette 283-400 $633.99
Standard Duty HTC Coated Full-Length Headers
  • 1987-91 Chevy Corvette 283-400
  • 1-5/8" Tube, 3" Collector

  • Hedman 66447 Details

    GM Cars

  • Will fit angle plug heads (Chevy aluminum only)
  • Must modify rotary A/C bracket
  • With EGR
  • Includes parts necessary to retain 50-state emission devices
  • Not legal for sale or use in California
  • With A.I.R. system
  • Modification to stock exhaust required to retain catalytic converter
  • Not applicable or intended for street or highway use (legal only for racing vehicles which may never be used on a highway)

  • Specifications:

    Tube Size
    1.625
    Collector Tube Size (in.)
    3
    Application
    Automotive
    Tube Direction
    Down Swept
    Coating/Finish
    Metallic Ceramic
    Port Shape
    Rectangle
    Material
    Steel
    Engine Make/Size
    Chevy Small Block 350
    Collector Diameter (in.)
    3
    Gaskets Included
    Yes
    Bolts/Studs Included
    Yes
    Catalytic Converter(s) Included
    No
    Collector Attachment
    Ball and socket flange
    Cross Over Pipe Included
    No
    Cylinder Head Port Shape
    Oval
    Header Finish
    Silver ceramic coated
    Header Material
    Steel
    Header Style
    Full-length
    Motor Mounts Included
    No
    Primary Tube Diameter (in.)
    1 5/8
    Primary Tube Gauge
    18-gauge
    Quantity
    Sold as a pair
    Reducers Included
    Yes
    Transmission Mount Included
    No
    Tuned
    No
    Weld-Up
    No
    Flange Style
    Standard
    Manufacturer's Part Number:
    66447

    These standard-duty Hedman HTC Coated Headers come from the factory with an extremely durable, protective ceramic-metallic coating. Hedman Hedders pioneered the automotive application of ceramic-metallic coatings in the early 1980s. Previously exclusive to the aerospace industry, Hedman Hedders recognized the coating's potential to improve both the lifespan and functionality of exhaust headers. All Hedman street headers are MADE IN THE USA and backed by a lifetime warranty against manufacturing defects! The HTC coating is covered for a full five years.

    NOTE: Installing coated headers on an engine during the break-in period will cause discoloration. The use of factory manifolds or an old set of headers is recommended while breaking in an engine.

    Features
  • Coating offers protection up to 1400°
  • Won't chip, peel, or "blue" like chrome
  • Superior heat insulation
  • Increased exhaust velocity for more power
  • Made in USA

    JEGS Easy Kits are designed by JEGS Professionals to help you get all the performance parts you need.

  • Does Hedman 66447 fit your vehicle?

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    Aspiration

    1990 CHEVROLET CORVETTE

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Without Smog Injection Or Injection Heads
    • EngineType: ALL
    • SubModel: BASE

    1987-1989 CHEVROLET CORVETTE

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Without Smog Injection Or Injection Heads
    • EngineType: ALL
    • SubModel: ALL

    1991 CHEVROLET CORVETTE

    • Fitment_Note: Modification To Stock Exhaust Required To Retain Catalytic Converter~Will Fit With Angle Plug Heads/Chevy Aluminum Only~Must Modify Rotary A/C Bracket~Without Smog Injection Or Injection Heads
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: 8
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )
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