ok I searched all the threads about this w/no luck. I have a 83 merc 350 w/alpha one closed cooling system. recently my exchanger blew one of the side caps and I pretty much cooked the exhaust and cooling system. found parts of the shutter in the outdrive when i pulled it to change the wp and all seals. everything but the shutter are ready for install. My question is can i use the new system where the shutter sits on top of the Y( drill two holes and install the new design)? since mine sit at the bottom of the y(see diagram) and require for motor to be pulled. The boat is a 22' cabin cruiser so the engine sits about 4' off th ground and needs to be lifted another 4' to clear the boat, so its not easily removed unless i have a forklift. anyone have any ideas for me? please help. by the way first boat.