new cylinder heads for a 6v92ti?

Sherrie...I'm trying to say this politely, but you've been given advice and not even given a courteous response to it saying you don't need that. However, clearly you now show you're going to ignore that advice and proceed on your own with no one locally managing the project or representing you. You're going to move the boat, although I'm not sure how, to another DIY marina and find another mechanic, who may or may not be certified and may or may not be good, and who is willing to follow your instructions fully.

You write, "I have been really frustrated as I have had 4 different things done and paid a lot for them and yet finding out that they were not done (electrical, bilge pumps, etc)." Yet, you're going to continue doing things the same way thinking next time the results will be different. Yes, you're likely to be charged thousands again and likely to have very similar results.

I feel for you, but you're not listening and you're proceeding your way. I don't know any way to advise or assist you at this point. I wish you the best of luck, but am not at all optimistic in you having it.

You hire someone for $150 per day and they aren't going to be good. Recommendations were made to you both publicly and privately. I really don't think you have the cost of owning a boat in perspective yet. I can't judge the $406 as I don't know what the expenses were or what your arrangement was.

If you've hired someone else then why are you not asking them the question you just asked us? You seem to think everyone is taking advantage of you. Well, those I use would do the job right, would not take short cuts designed to save money but jeopardizing the job. Hopefully this one works out for you, but if you're paying less than $300 per day for their services that would be a very bad sign. There are some excellent shipyards all around you who have certified mechanics and do excellent work and stand behind their work. The mechanic you find to go work on your boat at Cracker Boy is a contractor and may be excellent or not. Good luck.

Have you used written contracts with anyone you've used?

I wouldn't fire a mechanic and have him finish the job,ever. You are only asking for trouble. At this point I wouldn't trust a single thing he's doing going foward. It also sounds like the people you're hiring to oversee it don't know what they're doing either. I agree with everyone else and everyone here has given very solid advice, yet you seem to ignore it. You get exactly what you pay for in this industry, and a lot of times even less than that. Trying to save a penny will cost you a pound, everytime.

My best advice to you would be to spend the money to hire a D.D. factory authorized service center to fix everything. Pricey yes, but at least you will get it fixed right, not need their work babysat and get what you pay for. The other problem is your trying to rush everything, but going about it all backwards.

Post a whole lot of pictures here on YF. Get your mechanic to take them, general ones & especially close-ups of the damage parts or areas. Have him describe all the damage in point by point detail ,each backed up by a photo. Oh, then and ask him to sign that assessment.

You should be able to replace a cylinder head with the motor in it's normal position. You only need to raise the motor up if you are dropping the sump (oil pan) and need to get to main or rod bearings. I replaced a piston, liner and all main and rod bearings thus the need to raise the engine. However, as others' have recommended, I wouldn't have the same guy you just fired put things back together. What kind of job do you think you're going to get? It will cost a few hours of labor for a new machanic to get up to speed but well worth it in my opinion. Otherwise you might as well start all over again.