Death of a /6

If I were to guess, I'd have to say it's a combination of super strong bottom end (even in the cast cranks), large bearing diameter keeps rotational speed/friction down, really thick pistons and lack of breathing room. with the stock carb/exhaust it's almost impossible for the engine to hurt itself aside from oiling problems. I had a 75 /6 duster when I turned 16. Promptly wrecked it 11 days later, but revived it by doing all the work myself only to drive it for another year before selling it, and I used the throttle like a momentary switch (either full on or full off) even some hwy runs of 110MPH+ runs and hill surfing and nuclear brunouts. Spit the driveshaft twice and grenaded the rear and still, pump pump yit yit vroom