Thread: Anyone else have trouble with "re-usable rocker arm bolts"?

So I'm putting my winter build back together (L67 block and heads), torqued my heads on, and then moved onto checking my pushrod length. I installed ZZP's "re-usable rocker arm bolts". Threaded them in by hand, then torqued them to 23 lb/fts. Went over them 2 or 3 times until my OCD was happy ha! I used the pushrod length checker (Comp Cams) until I was throughly satisfied that 6.95 pushrods would do the trick with my LS7 lifters. Went to take off the rockers, and BAM! Two bolts break. Anyone had any trouble with these things? I have no idea why they broke. I'm no newbie to cars, modding, etc. I do this for a living. Totally puzzled as to why this happened. They're in there tight too! Tried to extract one, used a little heat, and just broke it some more. I'm thinking I'll have to pull off my rear head, put it on a bench, and drill/tap/extract, etc. Any thoughts or suggestions to provide insight to this freak problem would be greatly appreciated. Thanks guys!

I took the rockers off and those bolts are stuck in there good. I'm going to take the head off and go through my normal extraction routine. The thought of drilling/extracting bolts with it installed makes me cringe. Atleast I'm not the only one that had this happen.

I just had both of my torque wrenches calibrated 3 weeks ago, specifically for putting my motor back together. No loctite, threads were clean. I'm just completely puzzled as to why this happened. I like BrandonHall10's idea of them bottoming out. There's no reason for them to still be stuck in there after the head snapped off. Once I extract them I will have more answers.