Thanks for the follow up! I had the original18hp Briggs go "Space X" on me last weekend on my 1993 718 (just over 1000 hrs). Now, I'm wrestling with the, presumably, $1500 approx. investment installing the Predator 670...$949 today, but then the adaptor, throttle/choke cables, machine shop charges for the adaptor, need a cherry picker engine hoist, etc., etc., so that's where I'm getting the ~$1500 when complete. My next concern is if I do this...I could lose a hydro immediately afterwards, which are discontinued. Plus, the metal that surrounds the blades is rotten/rusted, so the deck is nearing end of life, too, unless I take it to a fab shop, which is more $$$. Awesome to see that this is possible though!