That day that every plane owner wakes up in a cold sweat thinking about around annual time.... It's the day the A&P says I have to start thinking about a engine overhaul. I have been having to replace cylinders on my O-470U frequently recently (almost each of the last 3 annuals) and now he showed me where there is wear on the lifters. Engine only has 850 SMOH but that overhaul was done in the mid 90s, so it's a very low used engine since before I started flying it 3 years ago. So now I'm in the market for an overhaul- YAY!! (that is of course if I can convince my partners not to just sell the plane and my wife not to divorce me ). From speaking with my mechanic the delta between a overhaul and just purchasing a TCM rebuilt is very low (34k from TCM direct vs. 32k from Pen-Yan), and it makes more since from downtime and resale perspective just to get one direct. Does that make since? Do anybody know of a good, reputable overhaul shop with significantly lower prices than what I was quoted from Pen-Yan? Is my reasoning of just getting a factory OH 0 time make since? Any good whisky recommendations that I can drown my sorrows with kissing this $ goodbye?