What size snowboard does a 6 foot 3 inch 270 pound guy need?

YOU WOULD NEED A BOARD THAT IS 160 TO 163cm. IN LENGTH

I say nothing less than a 156.. that's if you really wanna get tricky like SSX. 162 or so wouldn't be a bad bet for all around. Also at 270lbs, I would say look into wide decks, they usually fit better for a foot bigger than a 10. And not the most flexy board either, as its gonna flex more for you either way.