Have a 62 one ton with the 305e.I would like to get more speed and power then it can give me I currently pull an 8000 lb skidsteer with it and it just doesn't do it in Montana.Is there some one who makes the conversion to put a small block and a newer 5 speed transmission in it.I also have a dump box on it so the transmission would have to be capable of this also.Have a 4:10 rear axle so a 5 speed would work pretty good. :rolleyes: