5.5 V8 350 Ford Econoline Super Duty. Goshen shuttle bus 13 passenger.19' long/shuttle space 11'. Purchase from the Alabama department of transportation. drove 70/75 mph home from Montgomery, Alabama to Rockford, Illinois without any problems or issues of any kind. Ran as it should. Front end shaky at 60 to 65. I intended to make an RV out of it. It gets less mileage than I expected. 10 -13 mpg. I don't want to spend the time and money on this as I intend to be highly mobile There is roof water damage from leak. Shuttle end is made of a steel frame and laminated plywood panels.