Yes, they can look many things up by the HIN and engine serial number. BUT,,, you have an 06 boat which means you have an 05 engine. So unless someone swapped them out, you have Sodium Valves.
Remove the valve cover and see if it has a 72 or a 75 stamped into the valve. That is the only way to answer it short of a receipt probing the work has been done.
Remove the valve cover and see if it has a 72 or a 75 stamped into the valve. That is the only way to answer it short of a receipt probing the work has been done.