[Synchro909]

I have an engine on the floor of my workshop that I will reinstall sometime. When I got the car iot came in, the main bearings rattled. I took between 0.005" and 0.007" out of the shims. To say that if the bearings are loose, then it is ruined is not so in my book. I recall my father in law telling of how many times he and his brother in law took up the bearings in his Terraplane back in the day. If rattling bearings meant the engine was shot, they would have been walking years ago. Besides, the OP says that they are not even rattling. I see no reason to change my first advice.