It may not help much but I installed a 250 in a '37 1/2 ton. I had to make front and rear crossmembers plus cut the firewall for extra clearance. The later model engines are longer and lower than the originals. I lowered the radiator about 2" so the fan would cover the bottom of it. Before the blade tips were even with the bottom of the lower tank. The rest was pretty easy swap. Joe