First off yes I did not chase all the bolt holes in the head. I did do that with the block but it's a 40 year old piece and the heads are new. I will be drilling the head while it's on the block, I did the other side with a piece of bolt in it and sweated the entire time I was working on it. This one should be much easier; at least the bit won't be bouncing off of bits of peanut butter bolt while also cutting aluminum. My biggest worry is not getting the hole straight.
To answer about the studs, even using threaded rod would not work in this case as the head of the allen bolt sits down in a recess in the VC. And yes, for the price I paid for having something different I expected better quality components. I hope they don't use hardware like this on their GT40s.
Now on to other offending studs. In this pic you'll notice the cool ARP studs and nuts holding the killer KC recip assy.
Guess what happened when I tried to mount the Moroso RR
oil pan? Yup, no clearance for the studs on the rear main.
So, back to bolts for the rear main! And the saga continues.
Steve