This conversion is possible, dont' know how the optics would turn out though. But all you need to do is to get a pair of dual filament headlights that would be able to fit into the socket. THe wiring is a bit tricky though. I suggest using a relay setup that gets switched on when the headlights are on. And then hook up the high beam to the high beam harness. Kinda hard to explain, but it will take some planning out.

However, i'm guessing that the angle of the inner lights will always make it appear that your high beams are on so your gonna be blinding people. And when you really turn your high beams on, it will just be slightly brighter.