I have the opportunity to purcase a complete 402 BB and T400 Trans for $625. It is a complete assambely from fan back to yolk. He says it is out of the vehicle and I could hear it run if I wanted. Now I do not know much about these two combinations other thant he T400 is a good trans. Now he says it is out of a towing vehicle of some sort, so I was wondering:A) How much HP and torque could i get out of this thing on a descent budget, and B) how much are they really work assuming they run fine and are a 150,000 mile peice?