No matter the condition of your 1980 Bonneville, OPGI has the Engine Assemblies you need to boost performance and get you back on the road. We currently carry fourteen Engine Assemblies to choose from for your 1980 Bonneville, and our Price Match Guaranteed prices range from as little as $10,949.99 up to $31,856.99. OPGI offers Blueprint Engines plus one other trusted brands of Engine Assemblies for your 1980 Bonneville, 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 Engine Assemblies in person.