So last weekend, in my search for a GMC engine, I found a "256" in Joplin that ran when pulled, supposedly. Joplin is only an hour and a half down the road and it was a good price so I thought what the heck. I knew a 256 was an oddity, but I was fine with it. I loaded up on Tuesday after work and headed to Joplin. It was interesting getting it loaded while we were blocking the neighborhood street with a cherry picker since it still had the transmission attached, we barely got it in the truck with my toolbox taking up part of the bed. It took us about an hour. When we shut the tailgate, the fan blades were touching the gate. The guy said he got it in a package deal with some other car parts and it had supposedly been in a dump truck that was getting squished so they pulled it to save it since it ran. That's all the info the guy offered. Away I pulled!
After a brief pitstop at Menards, I decided I'd try to scrape some gunk off the tag next to the distributor and voila a 228 appeared. In a dump truck you say?? I say as well. I believe the transmission is a sm420 and the bell housing is out of a 48-53 truck.