390 , new shocks and spring assists, motor has been well maintained as well as the brakes etc. Handful of newer parts replaced over time including tires. Dual exhaust with Flowmasters. Newer components for tailgate, clean bed, rear differential just flushed and filled, new rear bearings. Used it to haul a fifth wheel 3 times. Added an external tranny cooler and an electric fan with toggle switch. Comes with a brake controller wired and road ready. Clean title in hand. Small rust hole about baseball size on both doors near the bottom. Overall good condition and taken care of.