Mopar: I have a theory that the Isuzu 2.3L or 2.6L will bolt in, but I've never had a chance to test that theory. The block is different in design, but the basic layout and proportions look the same.
I think a 1.9L would be a series 13 motor (a 1983 in other words) the 1982 series 12 models still had a 1.8L. The other thing that should be a bolt on swap besides the 1.9L is the multiport fuel injected 2.0L turbo motor from an Isuzu Impulse. Like the 1.9L, its the same basic block as the 1.8L luv just punched out a little more. Good luck finding a Turbo Impulse though, especially one for sale. Almost twice the horsepower of a stock luv 1.8L though, and its only about 10% larger displacement.
The price that 3.2 is going for is a steal even if there is a hole in the side of the block. I don't know if I'd want to put one in a LUV though, as there would be a lot of plumbing and electrical to get it going. The electronics would be a nightmare without a complete donor vehicle to take everything from. You got more sensors to make work than Scotty did on the USS Enterprise.
