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JEGS Performance Products 300121

Metallic Ceramic Coated Long Tube Headers 1964-1981 Pontiac Passenger Car (326-455 c.i.)

JEGS Performance Products 300121

555-300121

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JEGS Performance Products 300121 Metallic Ceramic Coated Long Tube Headers 1964-1981 Pontiac Passenger Car (326-455 c.i.) $381.99
Metallic Ceramic Coated Long Tube Headers
  • 1964-1981 Pontiac Passenger Car (326-455 c.i.)
  • SAP Port Shape
  • 1-5/8" Primary
  • 3" Collector
  • 5/16" Flange Thickness

  • JEGS Performance Products 300121 Details

    Pontiac

    Fits: (all with 326-455 c.i.)
  • 1970-1981 Firebird, Trans Am
  • 1964-1975 GTO, Le Mans, Grand Am

    Automatic Manual
    A/C P/B P/S Column Floor Column Floor
    Y Y Y N Y N Y

    Note: Some factory heads do not have end bolt holes and should be drilled & tapped to assure proper sealing.

  • Specifications:

    Tube Direction
    Down Swept
    Engine Make/Size
    Pontiac 326-455
    Material
    Mild Steel
    Gaskets Included
    Yes
    Collector Diameter (in.)
    3
    Bolts/Studs Included
    Yes
    Catalytic Converter(s) Included
    No
    Collector Attachment
    3-bolt flange
    Cross Over Pipe Included
    No
    Cylinder Head Port Shape
    Round
    Header Flange Thickness (in.)
    0.313
    Header Material
    Steel
    Header Style
    Full-length
    Motor Mounts Included
    No
    Primary Tube Diameter (in.)
    1 5/8
    Primary Tube Gauge
    18-gauge
    Reducers Included
    Yes
    Transmission Mount Included
    No
    Tuned
    No
    Weld-Up
    No
    Flange Style
    Standard
    Coating/Finish
    Ceramic
    Header Finish
    Silver

    JEGS premium metallic ceramic coated headers look great and are made with heavy duty flanges and 18-gauge mandrel bent tubing. The special ceramic thermal barrier coating reduces under hood temperature, prevents thermal fatigue & corrosion.

    Every header is designed with the proper tube size and length to efficiently remove all the exhaust from each cylinder, reducing pumping losses, resulting in increased horsepower and torque. These headers come with all the necessary mounting hardware, reducers, premium gaskets, detailed instruction sheets and a special installation kit to help protect the ceramic coating while installing the headers.

    For off-road and racing use only, unless otherwise noted.

    JEGS Premium Metallic Ceramic Coated Headers for Chevy Ford Mopar Pontiac

    Does JEGS Performance Products 300121 fit your vehicle?

    Narrow Results

    1967 PONTIAC LEMANS

    • CC: 5343
    • Liter: 5.3
    • Aspiration: N
    • SubModel: BASE
    • CUI: 326
    • EngineType: V8 ( 5.3 L / 326 )

    1968 PONTIAC LEMANS

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1969 PONTIAC LEMANS

    • CC: 5733
    • Liter: 5.7
    • Aspiration: N
    • SubModel: SAFARI
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 PONTIAC FIREBIRD

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 403
    • EngineType: V8 ( 6.6 L / 403 )

    1975 PONTIAC LEMANS

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1969 PONTIAC LEMANS

    • Liter: 7.0
    • SubModel: BASE
    • CUI: 428
    • EngineType: V8 ( 7.0 L / 428 )

    1980 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1975 PONTIAC FIREBIRD TRANS AM

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973 PONTIAC GRAND AM

    • CC: 6555
    • Liter: 6.6
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: P
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1974 PONTIAC LEMANS

    • CC: 6555
    • Liter: 6.6
    • Aspiration: N
    • SubModel: SPORT
    • Engine Vin: P
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1978 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: FORMULA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1965 PONTIAC LEMANS

    • CC: 5343
    • Liter: 5.3
    • Aspiration: N
    • SubModel: BASE
    • CUI: 326
    • EngineType: V8 ( 5.3 L / 326 )

    1980-1981 PONTIAC FIREBIRD TRANS AM

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1975 PONTIAC LEMANS

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975 PONTIAC GRAND AM

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1964 PONTIAC LEMANS

    • CC: 5343
    • Liter: 5.3
    • Aspiration: N
    • SubModel: BASE
    • CUI: 326
    • EngineType: V8 ( 5.3 L / 326 )

    1974 PONTIAC LEMANS

    • CC: 6556
    • Liter: 6.6
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: P
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1972 PONTIAC LEMANS

    • CC: 6556
    • Liter: 6.6
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: P
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1973 PONTIAC GRAND AM

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975 PONTIAC GRAND AM

    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1969 PONTIAC LEMANS

    • Liter: 7.0
    • SubModel: SAFARI
    • CUI: 428
    • EngineType: V8 ( 7.0 L / 428 )

    1976 PONTIAC FIREBIRD TRANS AM

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1980-1981 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: FORMULA
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1979 PONTIAC FIREBIRD

    • Liter: 6.6
    • SubModel: FORMULA
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975 PONTIAC LEMANS

    • Liter: 5.7
    • Aspiration: N
    • SubModel: SPORT
    • Engine Vin: H
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974 PONTIAC GRAND AM

    • CC: 7457
    • Liter: 7.5
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: W
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1968 PONTIAC GTO

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1977 PONTIAC FIREBIRD

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1978 PONTIAC FIREBIRD

    • Liter: 5.7
    • SubModel: ESPRIT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974 PONTIAC GRAND AM

    • CC: 6556
    • Liter: 6.6
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: P
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975 PONTIAC GRAND AM

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: ESPRIT
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1975 PONTIAC LEMANS

    • Liter: 6.6
    • SubModel: SAFARI
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1979 PONTIAC FIREBIRD

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1969 PONTIAC LEMANS

    • CC: 6555
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )
    300121 - JEGS Premium Metallic Ceramic Coated Headers is rated 4.5 out of 5 by 2.
    Rated 5 out of 5 by from jegs premium pontiac ceramic headers headers fit fine not to low not to hard about 3.5 hours and it came with everything needed to install
    Date published: 2015-12-04
    Rated 4 out of 5 by from Great looking headers for the money Look great and love the thick flange. Cant speak for fitment as I haven’t installed them yet but looks like they should be alright. Really nice finish. Jegs, did forget my collectors and the gaskets arrived broken but a simple phone call to Jegs and they made it right. I think I got sent someone elses returned headers as even the box was pieced and taped together unlike a factory sealed package.
    Date published: 2017-12-28
    • y_2018, m_1, d_15, h_11
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.6
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_2
    • loc_en_US, sid_10001_10001_1689428, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    Do these headers interfere with the oil filter on a 1976 firebird with a 400 pontiac engine.? Can the oil filter be removed normally ?

    Asked by: 1572
    The only notes we have on this header is that a 1975 lemans may have some minor clearance issues that can be fixed.
    Answered by: Rusty B
    Date published: 2017-10-12
    • y_2018, m_1, d_15, h_11CST
    • bvseo_bulk, prod_bvqa, vn_bulk_2.0.6
    • cp_1, bvpage1
    • co_hasquestionsanswers, tq_1
    • loc_en_US, sid_10001_10001_1689428, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs
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