I had really planned on keeping the original F during my build but it is not working out. Every piece I take off of the thing has something wrong with it and I can't justify putting that kind of money into an engine that most people consider worthless. Been seriously looking at diesel as the way to go. Don't like the Toyota engines due to parts issues. I do like the Cummins engines as parts will not be an issue. I know some people are doing the 4BT but I don't want the 4"+ lift. Considering the fact that I will not be doing any rock crawling or any other serious offroading the B3.3T is really looking good to me. Does anyone know of the B3.3T being successfully put in a FJ55 or am I thinking about uncharted territory??? Thanks guys!