These little engines are quite heavy....not exactly sure what would need to be done to the front end in order to support the extra weight. If the Nissan is four wheel drive, would a solid front axle swap be a viable option to provide some trustworthy support? I know some great websites with resources and info to support that venture. Also, as far as fitment is concerned, what about height? As in, would the engine need to be too tall in some manner thusly creating an issue? For some reason, I am thinking an NV 4500 would bolt up to these however I am not 100% for sure and would welcome a correction if I was wrong there. Actually, I have been pondering what an easy transmission mateing choice would be for a 4bt myself...Check out 4btswaps.com
Caught a grammer foul-up on myself there.....I meant to say "As in, would the engine be too tall in some manner thusly creating an issue?"