How To Buy A Used Boat Ontario I Bought A Used Boat. It Has A Torn Boot Around The Lower Unit. How Do I Know Which Boot Kit To Buy?

I bought a used boat. It has a torn boot around the lower unit. How do I know which boot kit to buy? - how to buy a used boat ontario

The board is a 4-cylinder Chevrolet engine has been rebuilt and runs very well. I do not know what kind of bottom end on the ship, so I do not know what to buy starter kit. Is there somewhere in the lower unit to tell me, or simply the measurement of the hole?