Crazy sight, hard to imagine what the parts go through at those numbers ...
https://www.youtube.com/watch?feature=player_detailpage&v=nsa6kq-qqIE
https://www.youtube.com/watch?feature=player_detailpage&v=nsa6kq-qqIE
That's supposed to happen. They are designed to rotate so that they wear evenly.That is cool! The valves and springs are actually rotating.
cool to see the oil flow turn to oil mist as the RPM gets high