Replaced the valve stem seals but had to take the head off. Inspected the piston to find that i can move it a little side to side within the cylinder wall, but seems strange that i can move it back and forth in a rotational direction as well. Clockwise and counterclockwise. No performance issues whatsoever, and the cylinder wall is slick as glass. Could this indicate wear at the top of the connecting rod where the wrist pin inserts? Or this could be totally normal, service manual made no mention of this. Any ideas? I wouldn't think its normal. Just wondering because if the connecting rod is going bad, i would rather replace it now since half the engine is torn down. And if so is the OEM rod the best? Would also entertain the idea of a big bore kit.