I'm not 100% sure they'll be swappable. What I do know is this; the turbo throttle body and the usdm na throttle body are slightly different, enough so that they won't interchange correctly. It also seems some jdm cressida/crown engines come with the usdm cressida style intake with no y-pipe and have a usdm turbo style intake, and some come with the y-pipe are are just like usdm na's.
So if you get a jdm 7mge with a y-pipe it'll interchange with the usdm na one no problem. If you get one without it; it may not interchange correctly.