Back on the 292 story, I spoke with an old school bus mechanic who stated they would be replacing the 292’s every other week because the drivers would over rev the engine. They would put the 250 in them because they have a shorter stroke and were less likely to blow.
I have a 292 with the 4 speed and 511 gears in the rear. Always feel I need another gear to shift to on the highway. Oh well… who needs to go fast in a classic truck.