I love my engine. Starts everytime ,Lots of torque and doesnt smoke. Only thing is she is loud but i think its kind of badass sometimes when im smashing through wavesI have a 471 DD in my boat. No sound insulation. After working on countless scallop trawlers, a little DD doesn't bother me.
Run her 1800 mostly-sometimes 2100 here and there.
No telling how many hours are on it. I know I've put A LOT of time on her since owning the boat 6 years.
Been a good engine but its heavy, which in a way I like only cuz the boat isn't bobbing around like a cork in bad weather. I really need to repower the boat. I really need a 300hp diesel so I can get up to 20kts.