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

Hedman 66447

500-66447

made in usa
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Hedman Standard Duty HTC Coated Full-Length Headers 1987-91 Chevy Corvette 283-400 $623.99
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:

    Application
    Automotive
    Tube Direction
    Down Swept
    Gaskets Included
    Yes
    Header Finish
    Silver ceramic coated
    Header Material
    Steel
    Header Style
    Full-length
    Motor Mounts Included
    No
    Tuned
    No
    Bolts/Studs Included
    Yes
    Catalytic Converter(s) Included
    No
    Cross Over Pipe Included
    No
    Reducers Included
    Yes
    Transmission Mount Included
    No
    Weld-Up
    No
    Primary Tube Diameter (in.)
    1 5/8
    Quantity
    Sold as a pair
    Primary Tube Gauge
    18-gauge
    Flange Style
    Standard
    Collector Attachment
    Ball and socket flange
    Collector Diameter (in.)
    3
    Cylinder Head Port Shape
    Oval
    Manufacturer's Part Number:
    66447
    Shipping Weight:
    27
    Package Height:
    39
    Package Depth:
    9.5
    Package Width:
    18.5

    Hedman's HTC Hi-Tech Coated Headers come pre-coated from the factory with a protective ceramic-metallic finish. This coating provides a durable, shiny finish that helps lower under hood temperatures. 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 while adding performance, flow and protection. Made in the USA.

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

    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.

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

  • Does Hedman 66447 fit your vehicle?

    Narrow Results
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    Aspiration

    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~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: 8
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1990-1991 CHEVROLET CORVETTE

    • EngineType: ALL
    • SubModel: ZR-1

    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~Elite Replacement Gasket PN[27520]~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~Elite Replacement Gasket PN[27520]~Without Smog Injection Or Injection Heads
    • EngineType: ALL
    • SubModel: ALL
    Items You Need
    Some parts are not legal for use in California or other states with similar laws / regulations