Is it stored outside?
I would at least drain it and pull it around on the trailer to make sure you get the waters out of the little pockets in the engine. I'm overly cautious about these things. But, then again, I have never had a block freeze as a result of my method.
Previous: 1993 Prostar 205
Red 1998 Closed Bow Ski Boat, PCM GT40, 310 hp, Standard Gear Reduction, Acme 4 blade, Perfect Pass SG/Zbox.
Tyler Ski Club
Be kind. Have fun.