Re: when did force 150 go from 4cyl. to 5 cyl. ?
Force NEVER made a 4 cylinder 150! Only a 120 and a 125. Chrysler made the 4 cylinder 150, however, I have never seen one. Force started manufacturing the 5 cylinder 150 around 1991. (the mercury years) For a couple of years it was a small bore engine of 3.3125 cylinder diameter. Around 1994 they increased the displacement with a 3.375 bore.