No matter the condition of your 1974 Chevelle, OPGI has the Tubing products you need to boost performance and get you back on the road. We currently carry 32 Tubing items to choose from for your 1974 Chevelle, and our Price Match Guaranteed prices range from as little as $7.35 up to $539.99. OPGI offers Thermo-Tec plus one other trusted brands of Tubing products for your 1974 Chevelle, to help you find quality parts you can rely on. With OPGI's 45-day return policy and thousands of customer reviews, you can shop with the utmost confidence. Enjoy parts delivered directly to your home, or visit our sunny Southern California Showroom & Warehouse to check out our Tubing items in person.