I have a 1999 Saturn sl2. The engine is blown. But the blown engine In my sl2 is a 1.9 liter 16 valve twin cam engine. Well i found a guy that has a engine he says will fit and the engine he has is also a 1.9 liter engine but It is out of a 2002 Saturn and it isn't a twin cam and he swears up and down it will fit and work properly, but I asked a few of my friends if it would because I don't know much about cars and they all said it wouldn't work. So I'm seeking advice on whether it would work or not.