I'm not sure, had a head gasket failure at 100 hrs, then at 221 the middle Piston started burning oil so I took it apart expecting to see a failed oil ring. Well there was that and then I found the small aluminum balls in the lower filter and this is what i found when it was all apart. These are cast pistons. It could be the head gasket that caused it, maybe it quenched the hot pistons when happened.
It could also be knocking if the knock sensor is bad?
I really don't know what the cause is so i asked wsm what they thought.
They've always been good with this stuff, I'm going with all oem for the next build though. I wanted to try wsm out for these just to see what happened.
Its being decked, I just dropped it off today. Have to dissassembe the head to deck it too. Not taking a chance this time.
It's weird.though, I started second guessing my abilities vs the quality of the parts vs the circumstances and I'm still not entirely sure what to blame for this.