I have owned a 78 f150 4x4 supercab,351m,4-speed, for 10 years before I traded it for a mercedes diesel,and sold it. I just got a f250 supercab 4x4,camper special,400m,c-6,
that I plan to keep for a plow/wood truck.
My f150 drove all over with no problems with the engine,even cross country...