Type 4 engines are generally known to last longer and of the dynographs i've seen, some have almost flat torque curves. Power at any rpm range.
~2.3 liter type 4 lasts ~100k miles
~2.3 liter type 1 lasts ~10k miles??
Point being, type 1 motors with this much power cannot be daily driven without constantly being maintained.
Actually, who knows now. Technology keeps getting better. Nikisil plated cylinders, etc.