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Hedman 66191

Standard Duty HTC Coated Full-Length Headers 1964-77 Chevy Passenger Car 396, 402, 454, 502

500-66191

made in usa
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Estimated ship date 08/29/17 if Ordered Today
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Hedman 66191 Standard Duty HTC Coated Full-Length Headers 1964-77 Chevy Passenger Car 396, 402, 454, 502 $613.99
Standard Duty HTC Coated Full-Length Headers
  • 1964-77 Chevy Passenger Car 396, 402, 454, 502
  • 1-3/4" Tube, 3" Collector

  • Hedman 66191 Details

    GM Cars

  • For 396, 402, 454, and 502 engines (also 427 but only in Camaro)
  • Not recommended for use with aluminum heads
  • Will not fit 1967-69 Saginaw close ratio P/S with 825 power steering box
  • 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
  • For 1964-74 vehicles with A.I.R. system (considered OE replacement when existing emission controls are not removed from vehicle)
  • EO#D167-27

    Applications
  • 1964-73 Chevrolet Chevelle
  • 1964-77 Chevrolet Malibu & El Camino
  • 1965-70 Chevrolet Bel Air, Biscayne, Impala
  • 1966-70 Chevrolet Caprice
  • 1967-69 Chevrolet Camaro
  • 1968 Chevrolet Chevy II
  • 1969-70 Chevrolet Brookwood & Townsman
  • 1969-74 Chevrolet Nova

  • Specifications:

    Tube Diameter
    1.75
    Collector Tube Size (in.)
    3
    Application
    Automotive
    Engine Make/Size
    Chevy Big Block (396-454)
    Tube Direction
    Down Swept
    Coating/Finish
    Metallic Ceramic
    Port Shape
    Rectangle
    Material
    Steel
    Gaskets Included
    Yes
    Collector Diameter (in.)
    3
    Bolts/Studs Included
    Yes
    CARB EO Number
    D-167-26 (pdf)
    Catalytic Converter(s) Included
    No
    Collector Attachment
    Ball and socket flange
    Cross Over Pipe Included
    No
    Header Finish
    Silver ceramic coated
    Header Material
    Steel
    Header Style
    Full-length
    Motor Mounts Included
    No
    Primary Tube Diameter (in.)
    1 3/4
    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:
    66191

    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.

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