I feel so good. Got it pulled and pulled it apart. Turns out that the #2 connecting rod bearing looks like it shattered. It could have spun, but the pieces are way too big.

So now my machinist is working his magic to make it all good and tight again. There was almost no lip on the cylinder walls and the other 3 rods and the mains looked great. I just can't wait to get it going and actually drive it for the first time.