I've polished the stock aluminium parts of the savage. I used BBQ spray for getting the anodizing of the parts.
I've put all the anodized aluminium parts in a plastic box with the BBQ spray in it.
After 15 minutes all the parts had the silver look.
But you can't put the motor in a box of BBQ spray. So I think you have to brush with a toothbrush or something like that.
Then you have to sand the motor with grain 1000-1200 if there are a few scratches. Then you pick up some polish pasta and put it on a lap and then scrub it over the motor.
I used this polish pasta
When you have scrubbed all the polish pasta away, you see a new shiny look!
I hope you understand my story, because some of the words are hard to transulate for a Dutch men.