Holy Cow!! I have never seen a failure like that!! How could something like that happen?! to much boost? related or associated with the head gasket failure?!
Broken rings and broken ring lands are fairly common on forced induction builds unfortunately. It is from too much heat in the rings. And not enough gap. It can be caused by a variety of things; detonation, overboost, timing, octane level, just to name a few. Tuning is very important and the window is small especially for pump gas. It takes a thousand parts working in perfect harmony to get it right, and one small part to fail for it to be catastrophic. It’s all part of the fun.
