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Since 1952, Speedway Motors has been committed to providing a broad selection of high-quality, affordable Headers - backed by our industry leading expert support and decades of experience. With a curated catalog of GMC Sierra 3500 Classic Headers for sale, and options to fit your needs including custom, direct fit, and universal Headers for your application. We offer Headers from top brands like BBK Performance. Shop with confidence and choose from 2 GMC Sierra 3500 Classic Headers hand picked by the experts at Speedway Motors.
Speedway Motors offers many types of headers for GMC Sierra 3500 Classic, including Shorty. We don't sell cheap GMC Sierra 3500 Classic Headers made from thin, low-grade materials, but without our GMC Sierra 3500 Classic weld-up kits you can still save money. Our selection of GMC Sierra 3500 Classic big block headers are available in Steel. Choosing a durable finish can help fight corrosion, which is why we offer Ceramic Coated and Chrome finishes for this application. Various header colors, including Chrome and Silver are available to match your individual needs. We are a trusted GMC Sierra 3500 Classic Headers distributor supported by decades of automotive industry experience that other auto parts sources just can’t match.
Headers are subjected to extreme temperatures, which is why our Headers are manufactured from heavy-wall tubing and heavy-duty flanges ranging from standard-duty for street vehicles to heavy-duty for racing. Cylinder head design changes can make shopping for Headers difficult, but we make it easy with Standard flange shapes designed to perfectly match most exhaust port shapes. If you’re looking for GMC Sierra 3500 Classic Headers near me, then Speedway Motors has your back thanks to our nationwide distribution network.
Available Headers port widths range from factory to aftermarket sizes while port heights range from low to high port. Correctly matching exhaust port size to primary tube diameter helps maintain exhaust gas velocity for better volumetric efficiency, which is why we offer GMC Sierra 3500 Classic long tube headers tube diameters ranging from 1-3/4" Generation after generation, we've supplied GMC Sierra 3500 Classic big block headers to help car lovers make the most of their time under the hood and behind the wheel.
Header collector diameter and length are also tuning elements to consider, which is why we offer 2-1/2 Inch collector diameters in multiple lengths. Headers are available (optionally) with collector reducers, which can be fastenened to the Headers in a variety of ways (depending on intended use, ground clearance, etc.). Speedway Motors offers quick, hassle-free shipping on GMC Sierra 3500 Classic LS swap headers, right to your door.
Speedway Motors aims to be your one-stop-shop for Headers. As such, our GMC Sierra 3500 Classic long tube headers can be ordered with gaskets. The same can be said of the installation hardware, which can be optioned with your Headers. Whether you’re a professional or you’re just learning the basics about Headers, we welcome, encourage and equip you to love cars as much as we do.
Why do Racers and Rodders shop at Speedway Motors for their GMC Sierra 3500 Classic LS swap headers? We share your passion, because our employees are Racers and Rodders too. We’re proud of the expertise of our veteran staff of techs, who are waiting to answer any questions you might have about our Headers - before and after your purchase. Gearheads have been coming to us for their auto parts needs since 1952 because we’ve always focused on giving you hassle free ordering & delivery, competitive prices, a specialized selection of quality parts, and the best GMC Sierra 3500 Classic long tube headers around.
| Long Tube Headers | Block Hugger Headers |
| Shorty Headers | Roadster Headers |



































