This mod include:
-Engines (100% functional)
Warning: As the radiator from the Barstow causes bugs, i have to remove it so the dragger version will burn after a while driving but it works. I suggest you to have the "Extreme radiators" mod for now until i find a fix
Clipping wheels on the drag version, that's catching fire because it has no working radiator, which has its pipes a going into the engine fan. And of course it has no blower valve. But at least you bothered to edit the jbeam.