Actually, this is a very acceptable way to make a part true.
It has been done in the arms industry for years and I have heard that auto parts that go through the process are as true as they can be afterwards.
If you have deep pockets, this is a first step in blueprinting a bigHP engine.
If you do this, would you do us a favor and tell us how it turns out?
I would be interested in hearding if it works as well for your auto parts as it did on a barrel of a rifle I own.
Good look.
Trularin