I don't know much about the trucks past. I picked it up in Colorado. There are still markings on the truck but very faint. I was going to color sand the markings to see if I can make some sens of the markings. I had to do this in the past for a WC that I used to have and it led to some interestning findings. I highly doubt that the civy motor was put in by Kiaser as the inner fenders were cut rather crudely for the motor mount attachment to the frame. It must have been the same folks that cut the hole in my front crossmember.