Neither of the Mopar BB or SB engines are great swap candidates which is why they don't get swapped into a lot of stuff. The SB engine is really long when the water pump is included and the BB has an odd center sump oil pan. The BB usually fits better with the rear sump truck pan, but the rear sump pan isn't super popular. The ear motor mounts also aren't as easy to work with as some of the other brands. The BB does accept a motor plate really well so it will go into a race car fairly easily but headers can be a pain.