Hy Chevy Nut, It's a Canadian truck, if it doesn't say Maple Leaf on the side of the hood then it must be a 51 or newer. All Canadian 1700s were powered by G.M.C. engines probably a 248cu. in. 1700 translates into 8400 in American I.D. in the later fifties, but there is no American equivalent model in the early fifties,[advance design years] We called them 3 tons, hope this helps
