Yep
One rebuild is instant-suspicion time. After all, if one blew up, isn't the other shortly to follow?
The exception is a low-time rebuild that blew up and was done AGAIN due to something that was done WRONG the first time.
But grossly dissimilar hours usually means the first engine got to where it HAD to be done, the other is still running ok, so you should budget for the second into the price.
That's cool IF you get the right number. If. And if the rebuild is "Joe and Jack's Cylinder Kit Special" type, then you have to discount it entirely in your offer - which means whacking off $15-20k on your offering price, PLUS whatever else you find.
That usually means a blown deal, because the guys who do this major one SPECIFICALLY to sell the boat - because one engine failed survey previously or it blew up bigtime during a previous trip. Of course if one blew but both were abused, the second is right behind it.....
South Florida is a great place to shop; I bought my boat there - but you have to be smart about it. The good news is that there's a good selection. The bad news is that there are so many damn alligators in the swamp that you need chainmail to avoid getting bit in half by them!
Happy Turkey Day, and if anyone wants to chat with me, feel free - always willing to talk with someone that's looking at these boats. I know mine inside and out, where all the trouble spots are, where the good parts are, and what to look for.