If you had it shot blasted, then chromed by a really good company it shouldn't come off. but make sure they put more than 3-4 microns on.
50's american and later Uk cars used 3 microns of chrome, hence they are all pitted now and need rechroming. Riva speed boats used 300 microns and they are all still shiney! But they did cost more than 10 Caddilacs

And they had TWO 5ltr V8's
