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Patriot Exhaust GM Specific Fit Headers


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GM Specific Fit Headers
GM Specific Fit Headers
  • 1955-1987 GM Vehicles 265-400
    (Select Details Tab Below for Complete Listing)
  • 1-5/8'' Primary Tubes
  • 3'' Collector
  • Round Port Shape
  • Metallic Ceramic Coated
  • Free Shipping - Estimated to ship direct from manufacturer on 06/21/23 , pending manufacturer availability. Learn More

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    H8021-1 - Patriot GM Car Specific Fit Headers is rated 4.8 out of 5 by 4.
    Rated 5 out of 5 by from Installed on 1960 Apache 10 The quality is good. The fit is great. I have lower the truck and the long tube headers I had hung below the frame rail. These fix nice in the engine compartment and the header/collector exit is higher and clearing the starter and should make installing the exhaust easier. I’m still in the process of building the truck, so can’t say on longevity. The only think I didn’t like is the collector steps down to a 2.25 exhaust. I’m running a 2.5 exhaust. I couldn’t find anywhere on the webpage this information. Going to have to purchase new collectors. I would recommend them!
    Date published: 2020-10-28
    Rated 5 out of 5 by from Great fit I was having a problem getting the right fit for the engine swap I did on my 1960 Apache 10. These headers were the perfect answer. And they look good too.
    Date published: 2019-12-02
    Rated 5 out of 5 by from Great fit, w angle plugs Install was not overly difficult on 68 camaro. Fit great , ceramic coating looks good
    Date published: 2017-07-17
    Rated 4 out of 5 by from Second set was fine Installed on 68 Elcamino. Had an exhaust leak that I finally figured out was coming from where the tubes were welded to the collector at the factory. Jegs took care of that with no problem. Have a few hundred miles on them and look good.
    Date published: 2018-11-28
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    Do these blue after use?

    Asked by: Lerb
    Yes, depending on the amount of heat developed they can blue slightly.
    Answered by: Rusty B
    Date published: 2018-03-28
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    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.


    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.