Hi all, I need some good solid help. I am looking at purchasing a Hatteras 46'. The thing is; it has 8V92ti 625HP Detriot diesels. The owner said he thinks they have 6000hrs on them! He has overhauled the engines twice and considers that they should have about 400hrs on them since he overhauled two years ago. He swears by these engines and said they are trouble free and run very well. Can you help with knowledge on these engines.. I'm fairly new to this size boat etc..