It isn't quite that simple unfortunately. One line goes into the bottom of the pan after going through the oil cooler and the other goes to a wart that comes off the block. It isn't like a 5.7l remote filter.
Based on some info I got elsewhere I think they are reversed, but I would like to see a picture or get info from pcm/nautique before I have him reverse them. I don't want to be responsible for messing up his boat.