Most 6-71 N's are generally known for going 10,000-20,000 hours before a major overhaul. 4700 hours for a 6-71 Natural before a major overhaul is...
I should have said height, not timing. I managed a large Hatteras Motoryacht for many years with 12v71 TI's (covingtons) and it used a 1.46"...
I understand that, but all of these companies marinized the engines differently. All of them used different fuel injectors, turbo's and other...
The 92's seem to do ok in boats where they cruise at 25 knots or higher. I managed a 1987 63' Ocean with 12v92's that went 6,000 hours before...
I'd wait about 6 months before doing that though..... let the paint off gas and cure for a good while first....
