, I took the liberty to quote what you posted on your break-in thread.
Thanks! I have no secrets and this is a great add to the thread. I just got off the phone with my machinist. He has no explanation and reiterated that melted cam bearings is not a usual failure. We are working out a time for him to come by to look at all the parts. May send the block back with him to double check everything and install cam bearings. I am 99% sure I did it right, but my experimentation with cam bearing installation is complete.