frosty for polished cases i take them off the motor and bead blast out any corrosion and blast in the recess' for the screws and then use hand tools, sandpaper and air or electric sanders to get all the little knicks,burs and deep scratches out then i use various grade scotch bright wheels on a pedistal polishing machine (bench grinder with grining wheels removed) and the i use a stiched calico/rag mop with a polishing compound, then finish off with an un-stictched rag mop wheel. After that i use degreaser to remove all the black polish left behind then also wash of with detergent. The end result is a mirror finish on alloy. Is that what you wanted? if you dont have access to that equipment you can use sand paper and then work your way through the grades of wet and dry paper, then use green sotch bight pads, then use black and gold steel wool soap pads with water. this will give a finish very, very close to pure miror finish (good enough for most people). If you want it a tad better then use a soft rag and polish by hand with Autosol or Reflection Metal polish. Relfection is the better of the 2. You can actually use Relfection polish after about grade 800 wet and dry, thats how good that stuff is.
