Hello All !!!

I own a '93 Caravan with a 2.5 and factory 5 speed. I plan to get a '90 caravan with 2.5 automatic that has a 2.5 Turbo. Will this engine bolt to a 5 speed? Or should I just pull off the intake and stuff and save it for a rainy day? It has 140,000 on it and the guy says that it runs for a few miles and then dies out. He had a new computer, filter and pump, distributor,etc. installed. Same thing. Just curious if it is something common.
Thanks!
Kevin