What engine block can I put into my 1990 Acura Integra LS hatchback ?

B18B1 -- 142 HP naturally aspirated ....-- From that forum: Quote: I just got through with B18B1 swap last week. I took the 75 hp CX engine/trans out of my 93hatch and put the 142hp LS engine in. Runs like a rocket now, and the mpg didn't take that big a hit either. It was really close to a "Piece of Cake" if you have all the LS stuff you need.