My m2 suffered failure, the cap in the nose cone backed out and stripped threads, would love a 1.71 for the ease of bolt up reasons, also thinking about a 1.62 convo. And swap, monty racing said they can get me the adapter kit for the omc,(only 1 guy in the nation makes the kit)that I know of. If you have anything I'm ready to buy something to get my boat back running again, thx.