No the outboard is on the transim. The older throw hull is closed off, it was fiberglassed over about 4" thick. It is water tight and looks good. My outboard is an older one so before I make any passage I would replace it with a new one.
Maybe go from a 9.9 up to a 15 hp. I would like to have a little more power in sea's 6 to 8 feet high.