Thanks Merle, Yes it is a T317. My Fargo workshop manual shows that this truck did have the 228. I was a bit confused with the 25 inch block. Obviously block length does not mean a bigger motor CI displacement. I have a 1953 Dodge frame in excellent condition and intended to put my Fargo body and motor in the 53 frame. However, the B3B used a motor mount that was actually part of the bell housing. At first I thought it would be simple - put the older motor mount on my Fargo motor and pop it in. Nope, the 25 inch block throws everything off, as does the slightly larger pilot cab used in 1954. . So I am going to use my original Fargo frame, motor and transmission. I will be able to cannibalize the gas tank, running board mounts and few other parts from the 53 frame. When all is done, I will have a left over 53 B3B chassis, motor and trans.