0
0
×
Account Login
1-800-345-4545
Gift Cards
Track Order
Help Center

JEGS Metallic Ceramic Coated Long Tube Headers for 1964-1981 Pontiac Passenger Car [326-455 ci]

555-300121


Product Q&A
View Now
Click image to zoom
Metallic Ceramic Coated Long Tube Headers for 1964-1981 Pontiac Passenger Car [326-455 ci]
$398.49
$340.79
SAVE $57.70
More than 10 available
Metallic Ceramic Coated Long Tube Headers
  • 1964-1981 Pontiac Passenger Car 326-455 ci
  • SAP Port Shape
  • 1-5/8 in. Primary
  • 3 in. Collector
  • 5/16 in. Flange Thickness
  • Pair
  • Free Shipping - Ships
    QTY

    Items You May Also Consider

    300121 is rated 3.5 out of 5 by 8.
    Rated 5 out of 5 by from Fit great!! Jegs headers fit fantastic and look just as good. After fighting fitment issues with Doug’s Headers that cost three times as much, Jegs came through. Phenomenal, thanks again Jegs!!
    Date published: 2018-02-15
    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
    Rated 2 out of 5 by from headers look great but they do not fit a 1976 trans am passenger side was almost to tight to work and drivers side i had to cut #1 runner off and refab and bend new tube to get to clear crossmember of suspension i guess the rest of these comments are lucky in there fitment
    Date published: 2018-02-21
    Rated 1 out of 5 by from Does not fit 1979 Grand Prix I am giving this product a POOR review because it says it's for 1964-81 Pontiac Passenger Car (326-455 C.I.). My car is a 1979 Pontiac Grand Prix and installing a 1974 Pontiac 400. We put the headers on the 400 (which bolted on good but horrible exhaust gasket, had to buy an aftermarket gasket). We dropped the motor in and seen that on the passenger side one tube hits the A-Arm and drivers side one tube hits the A-Arm and another tube hits the firewall. Not even close to fit! Good looking product though! Definitely need to change the years. Not made for G-Body cars!
    Date published: 2019-12-02
    Rated 1 out of 5 by from Don't fit I ordered these to fit a 64 GTO. The passenger side was fine , but the drivers side was not even close to fitting. They hit the cross member with the engine still 6 inches off the mount. The second set was the same.
    Date published: 2018-03-16
    • y_2024, m_4, d_23, h_5
    • bvseo_bulk, prod_bvrr, vn_bulk_3.0.41
    • cp_1, bvpage1
    • co_hasreviews, tv_2, tr_6
    • loc_en_US, sid_10001_10001_1689428, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    Will this fit my 1973 Firebird Formula 400 with the 400 4x heads?

    Asked by: Mark F
    The Jegs 555-300121 header will fit a '73 Firebird 400.
    Answered by: jshook
    Date published: 2024-02-19

    Hi will these fit a 66 gto with standard d port heads

    Asked by: Rick
    The Jegs 555-300121 header will fit a '66 GTO with standard Pontiac cylinder heads.
    Answered by: jshook
    Date published: 2024-02-09

    Will these headers fit a Pontiac 455 with Edlebrock heads?

    Asked by: LWL1
    The Jegs 555-300121 header does not fit Edelbrock cylinder heads.
    Answered by: jshook
    Date published: 2023-06-23

    Will this fit a 1970 Lemans Sport?

    Asked by: 70 Lemans 350V8 w headers
    The Jegs 555-300121 header will fit a Pontiac powered '70 LeMans.
    Answered by: jshook
    Date published: 2023-01-11

    Will this fit 77 Trans Am 400 6.6 w72

    Asked by: Bandit1
    Jegs 555-300121 will fit a 77 pontiac trans am 400
    Answered by: langus
    Date published: 2022-11-07

    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: 2020-12-20
    • y_2024, m_4, d_22, h_4CST
    • bvseo_bulk, prod_bvqa, vn_bulk_3.0.41
    • cp_1, bvpage1
    • co_hasquestionsanswers, tq_6
    • loc_en_US, sid_10001_10001_1689428, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs

    Items You Need

    Related Products

    Trunk Latchassy GM cars 67-69 Camaro 62-72 Nova and most all 59-72 GM Cars
    Close
    Dirt Late Model Headers SB-Chevy w/18° Heads Tube Size: 1-3/4" Collector Size: 3" Ceramic-Metallic Coating
    Close

    Recently Viewed

    Some parts are not legal for use in California or other states with similar laws / regulations

    Motor Vehicles

    WARNING: Motor vehicles contain fuel, oils and fluids, battery posts, terminals and related accessories which contain lead and lead compounds and other chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. These chemicals are found in vehicles, vehicle parts and accessories, both new and as replacements. When being serviced, these vehicles generate used oil, waste fluids, grease, fumes and particulates, all known to the State of California to cause cancer, birth defects, and reproductive harm.

    Tools:

    WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Some examples of these chemicals are: lead from lead-based paints, crystalline silica from bricks and cement and other masonry products, and arsenic and chromium from chemically treated lumber. Your risk from exposure to these chemicals varies, depending on how often you do this type of work. To reduce your exposure, work in a well-ventilated area and with approved safety equipment, such as dust masks that are specially designed to filter out microscopic particles.

    Electrical Cords

    WARNING: The wires of these products contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling.