The engine is a 96 225HP JOHNSON OCEAN RUNNER counter roatater model. It appeared to me though from the little bit I looked at it that it was actually a 200HP powerhead as it looked like small bore carbs. The transom work appeared to have been done pretty nicely although they could have done a little better at fairing the corners in. It was THICK though, I would say close to 4-5 inches thick and SOLID AS A ROCK! He had receopts for $9600 for the transom, paint, and some deck repairs he had done to it. He also said he had the tank pulled and cleaned and re-installed at the same time(about 4-5 years ago), and it's the stock 100 gallon aluminum tank. If my HYDRA-SPORT could find a new home I would have her already, but I just can't wait around another 6 months for my 2 nd boat to sell like my last venture of having 2 nice boats. So far all I have had on the HYDRA-SPORTS is lots of people wanting to trade me, offer me $2K for a turn key rig, and alot of scammers wanting nothing more than my address. CRAIGSLIST is LOADED with thieves now trying to get your address and then they come and steal your stuff when your not home.