Faded grille on 73 Swinger:

Anyone got opinions on repainting a 73 swinger grille? picked this one up several months ago when the one that was on the car was broken (previous owner hit a dog) all of the tabs are great, everything's intact, but its got a dirty look to it, some of the grille is faded and almost black looking instead of the silver, any ideas on getting it looking better?