Heads will go on any bottom ends and vise versa. Is your GZE a bigport to being with? If so you'll have no issues at all. I can't remember if the cams are any different in the GZE over the GE, otherwise there'd be no difference.
Its slightly more complicated if you have a small port GZE and you are trying to put a bigport GE head on it. You'd need to block the oil drain at the back of the block on the drivers side.