Engine knock: Lifters?

[Grovian]

Yea I have a bad knock as well, I am pulling the head off this weekend, I leaning more toward Lifters and cam as I have over 350km on the engine haha.

Hoping not to see a piston looking like that gah

 

[JC97]

Mine just started doing that a few days ago. And i keep seeing more and more broken skirts with that noise the deeper i dig.