So the other day as I was slowly plodding my way through acre after acre of over grown grass due two the previous 2 weeks of rain I was envisioning myself on some high powered mower just slashing through all that crap. So then I came home and started to do some research. I found a dealer on ebay selling Generac 33hp engines for $1499 w/ free shipping that will supposedly be a direct replacement for my Kohler Command 27. Has anyone done this kind of swap? How hard is it? This would be a winter project if I decide to go through w/it. My current engine runs just fine and is around 550 hours. Probably will be around 1000 at the end of the year. The hours that the extra 5hp would save me over the course of the year, or years of its supposed 3000 hour life would be really awesome and easily pay for the $1500 cost. Anyone done this?