I was fortunate enough to get a steal on my favorite truck today, a '91 Toyota pickup 4wd. It's in really good shape but will need a new engine. I have another Toyota pickup 2wd that has a great running engine but I bought it for converting to electric. Both of these trucks are 4cyl with a 5spd transmission and they are both a 91 model. Is it likely that the engines are compatible? I'm desperate to get this pretty truck running and retire the old chevy. Thanks!!