For what it's worth, I had a balance shaft/oil pump belt break and get caught up in the timing belt on my '94 Galant. This caused the timing belt to skip several teeth (who knows how far) and bent all the valves. It left damage on all pistons, somewhat similar to the damage I see here. I smacked a head on it from the junk yard and proceeded to drive it another 15k miles without any related trouble.
Pros: drove 15k miles without trouble
Cons: damage on all pistons
Vehicle:
Mitsubishi Galant
Mileage: 24140 km
