Well Im new to the site. I just got a 1992 Z34 lumina with the 3.4 twin DOHC with a 5 speed. I payed $1200 for the car. I only had it for a few days now. But I have already put a rod though the block so I need a new engine. Here how it blew up I was drive to a town 45 miles away from mine and about over half way there the engine started knocking to high heaven. Then I got to where I was going shut it off. When I went to start it back up it crancked over slowly so I tryed to pop start it didnt work. So I called one of my friend to jump start it that worked. And aftet that I was driving back home and I was only driving 55 mph and the almost to the minnesota boarder white smoke came out of the back and then the engine just locked up. So thats that. I plane to put a new one back in once I find one. well heres some pics of it. hope you like. Almost for got to add the car only has 107xxx and the tranny is a GM remaned with 2000 miles or so.