Found this on another site and thought others here would enjoy it.. He definitely hit the nail on the head when he talked about stroker kits in stock LS blocks.. Ran into this back several years ago. Destroyed 2 pistons on a 6.0L stroked engine on 2 different occasions. After realizing the issue never ran they style of setup again. Of course it was making over 1100 hp and ran 8.80's in the 1/4 on spray.
https://www.youtube.com/watch?v=Vsmb...ature=youtu.be