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Hedman 28140

Standard Duty Uncoated Full Length Headers for 1964-81 Pontiac Grand Prix, Le Mans, GTO, Firebird, Tempest, Grand Am 326-455

Hedman 28140

500-28140

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Hedman 28140 Standard Duty Uncoated Full Length Headers for 1964-81 Pontiac Grand Prix, Le Mans, GTO, Firebird, Tempest, Grand Am 326-455 $215.99
Standard Duty Uncoated Full Length Headers
  • 1964-81 Pontiac Grand Prix, Le Mans, GTO, Firebird, Tempest, Grand Am 326-455
  • Tube Size: 1-5/8" to 2"
  • Collector Size: 3"

  • Hedman 28140 Details

    Pontiac Cars

  • 1970-74 Pontiac Grand Prix 326, 455
  • 1964-77 Pontiac GTO, Lemans, Tempest 326,389,455
  • 1967-81 Pontiac Firebird 326, 455
  • 1973-77 Pontiac Grand AM, Lemans 326, 455
  • Without smog injection or injection heads.
  • Except round ports.
  • Three tube design.
  • Some heads require drilling and tapping of end holes.
  • Includes parts necessary to retain emission devices. (50 State)
  • Not legal for sale or use in California on pollution controlled motor vehicles.
  • Modification to stock exhaust required to retain catalytic converter.
  • For vehicles 1964 through 1974 without A.I.R. systems, considered as O.E.M. replacement parts when existing emission controls are not removed from vehicle.
  • 1975-1979 only, 50 state legal for these years only.
  • EO#D167-27

  • Specifications:

    Collector Tube Size (in.)
    3
    Application
    Automotive
    Tube Direction
    Down Swept
    Port Shape
    Rectangle
    Material
    Steel
    Engine Make/Size
    Pontiac 326-455
    Tube Size
    1.625 - 2
    Coating/Finish
    Painted
    Gaskets Included
    Yes
    Collector Diameter (in.)
    3
    Bolts/Studs Included
    Yes
    CARB EO Number
    D-167-27 (pdf)
    Catalytic Converter(s) Included
    No
    Collector Attachment
    Ball and socket flange
    Cross Over Pipe Included
    No
    Cylinder Head Port Shape
    D-port
    Header Finish
    Painted
    Header Material
    Steel
    Header Style
    Full-length
    Motor Mounts Included
    No
    Primary Tube Diameter (in.)
    1 5/8 - 2
    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:
    28140

    With Hedman's guaranteed fit and lifetime warranty, how can you go wrong with these headers? Most are fabricated from 18-gauge steel with mandrel bent primary tubes and 1/4" flanges; some utilize thicker 14-gauge or 16-gauge tubing with 3/8" flanges. The black paint Hedman applies to uncoated headers is not high-temperature; it is pre-installation protection only. For the ultimate protection from the elements, click the following link to view Hedman's own HTC Hi-Tech Coated Headers.

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

    28140 - Hedman Hedders Standard-Duty Uncoated Headers is rated 5.0 out of 5 by 1.
    Rated 5 out of 5 by from You cannot beat these for the money!! Good headers, fit real well, all hardware included
    Date published: 2016-11-22
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