Dig a little deeper...
Attachment 184267
Stud broke. Yes, it was the upgraded stud, and yes it was at the correct tension. ( the rust is because it's been open for a while. Going back together now )
If you find similar damage be sure to look down the push rod holes at the bronze fittings on top of the lifters. Sometimes they will be damaged by the same force that breaks the rockers. Mine weren't, thankfully.
Thing I found most astonishing is it was still running... sorta. Lots of "Jeep noises" from the snorkel.