Cleaning up a timing cover

[KeithA]

Hello all
What would produce the best results for cleaning up a 45 timing cover. Fine glass bead  blasting, or going to the enormous trouble with a polishing mop, and sore fingers.
Thanks Keith

[Blue]

I find wet-bead blasting is pretty good for alloys - it tends to leave a bit of sparkle, rather than turn the alloy dull like dry blasting