just figured id show you guys for a laugh, took my old motor apart this is lucky #7 motor was bone stock never used nitrous or anything 37000 miles on her making an ornament out of it and putting it on my christmas tree

 

Any idea what/how it happened?

 

Pistons, even #7 cyl do not just grenade like that. If there isnt a cam there but at least any sort of aftermarket/local tuning done to the car, thats my vote, too much timing/not enough fuel.

But yes id make it a Xmas ordiment but at the same time, you need to find a branch stout enough to hold it.

 

Looks like you were getting a decent amount of blow-by in that area of the piston

 

that is exactly what happened to mine. cept i was doin 153mph and it was runnin very very lean. oops