hi all just put away the Switchin To Glide for the winter ( snowing today ) I have a line on 2 mercruiser D636 4.2 6cyl turbo diesels with about 1200hrs on them ,I want to repower my 1986 3207 aft cabin with diesels ( 5.7 mercs right now gas prices are killing me ) has anyone have experience with these engines ? I know they are Italian VM Motori and I have heard all the chirping about parts and service issues, doesn't bother me . Just looking for cheaper motive force ,I'm heading south next fall gas or diesel

Any info would be appreciated
Scott