Single cylinder glaze honing?
Here's what I'm referring to with the Scotch Brite pads. They have different "abrasive" levels. I even had a rep bring me some samples to use to remove knicks off of recycled pistons. The rep brought me some that would take the knick down without removing any "base" metal, just the knick that was sticking up. It worked great.
I would check a home improvement store, auto body supply store.
View attachment Scotch Brite A01 B.jpg