are you dropping a 318 in? I did a 360 into a D50 swap in 03-04. We used a 5 speed and the stock tcase. We ended up upgrading the tranny to a T5HD and the tcase to a NP231HDD. The biggest mods were the enging mounts and we moved the rad foreward 1.5". We also went to an electric fan and an external electric fuel pump and regulator. THe 360 puts down 381 ponies at the rear tire. It was built up a bit but not crazy. The engine builder was Shane Chapman of SGC engines.

always working