The first Power Wagon had a 230 cubic - inch
flathead inline - six engine, which was mated to a four - speed transmission and transfer case, making the Power Wagon extremely capable off - road.
It was built from 1948 to 1952, propelled by either of two
flathead engines — a 226
inline - six, or a 239 V8 — with a 3 - or 4 - speed manual transmission.