Rattle sound from passenger side valvetrain..

well I kept pulling parts off yesterday and found what I believe was the cause of my noise..

I am not sure what would cause that wear spot? Bad ring??

I will wrestle the motor out this weekend...

The good news is! I get to pick out a new cam, and get the heads done while its out...

I think I will start a new thread on what parts to buy for the rebuild...