Regardless of the naysayer's comments, it is a beautiful sight when you tear down a motor for rebuild or maintenance of some kind and find the interior clean as a whistle.
Not to me. It’s a sign someone had more time than money. I’ve seen hand polished blocks that took hours and hour and hours of grinding and polishing and not one of them made more power.
If you want more oil control, run a crank scraper. You can’t do a thing with paint of anything else in the lifter valley to make more power.
