Post a pic.

Most "anomalies" can be easily explained in one of maybe 10 ways, few impact what we do unless its related to a size, over or under which most would measure all these things anyways.

I just ran out and looked at a roller block, easy to surmise since they are all under a cylinder its related to that, weather in size, finish, ect...just things related to production or assembly.

You casting date vs assembly date isnt uncommon either.