I've dropped a pumped up 7.3 I had into a 49 6400. With IFS front suspension from older motor home.the 7.3 required less cab modification than my original plan of a 5.9 and I had the wrecked 7.3.currently im studying my steering problem the valve cover is in the way of stock path so I'm working on mbuilding a steering column for it. Just trying to get a little in put.
