At one time, if you wanted big horsepower in your Mopar muscle car or truck, your choices were limited to a big-block swap or a coveted Hemi. At the very least, you needed different engine mounts, K-members, transmissions, headers, etc. -- and Hemis have never been cheap

But now there's another way to get more horsepower: boring and stroking your Mopar small-block to get more cubic inches -- up to 476 cubes The small-block Mopar is one of the easiest engines in which to increase displacement without extensive modifications or specialized...