They were used in trucks too, or mostly.
A friend of mine runs/works a few of the GMC V6 gas engines (478's mostly) the diesels were based on, and knows a fair amount about the toroflows also...
His opinion is the toroflows were decent engines in small trucks that weren't worked, but lousy engines if in a large truck. They run fine when they run, but don't last if put under a good load. At lest that's his take on them, and I've heard the same from others.
Grigg
