Browsing around on the internet and ran across this truck for sale. I'm not completely sure, but I do believe this would have the GMC 478 V6. I'd love to have one of those beasts! I'd do some very minor mods to it and put it in a fenderless GMC rat rod! If I had the cash and the time, I'd buy the thing, swap in a V8, resell the truck and keep the V6.
http://www.truckpaper.com/listingsde...x?OHID=2634109