Quote Originally Posted by DMitch16 View Post
I have not seen a stud failure that has not caused at least some damage whether it be a bent valve or damaged piston
Every one I have seen had bent rocker arms, the direst overhead parallel centre line to the valve stem to bore means a hit has nowhere to go, the trouble is the damage doesn't show straight away. Also I have measured piston height chnage when they have hit suggesting a bent rod.