I bought this 6.2 in running order with 44,000 miles on it. I heard it run nicely. It sat in my barn for a year and a half and now spins 3/4 around and stops. I figure it's oxidization in the cylinder that had the open valves. Should be a excellent candidate for a rebuild. It's a GM replacement engine, Targetmaster they called them I think. I just don't have a use for it now as I sold the Blazer it was going to get put in. I have a forklift to load it in your truck or on your trailer.