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3.7l to 4.3l converstion, Montego 2757


Hi, I'm new to the forum. We have had our Montego for nearly 20 years and run a lot of hours/year. We replaced the original 3.7's with Jasper remans and they now have 400 hours. We can't keep the boat on the water due to a variety of problems that are all engine related. Want to convert to 4.3l Vortecs. From a reliability perspective I'm looking at a 4.3l, 4 barrel carb Mercruiser reman from Michigan Mortorz (3 year warranty). This will be about a 15k conversion unless I could find relatively new, low hour used engines. If anyone has advise, knows of used engines or any other input I would appreciate. Thanks.

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