The Ram 1500 made a name for itself as the half-ton that tried a little harder, with a smoother ride than most of its rivals and that unmistakable big-rig front end. The ST trim is the honest, no-nonsense workhorse of the lineup, built for people who want a truck to do truck things without a lot of fuss. Under the hood is Chrysler's venerable 5.7L HEMI V8, the engine most buyers have in mind when they picture a Ram. It's a naturally aspirated gasoline V8 that delivers the kind of effortless tor...