Hello, I'm a new recruit to this site. Just purchased a boat with twin OM 352 engines. A Manual included lists an installation survey saying what the engines were used for (non-marine). It lists: L,LK,LS,LKo,LA,LAK,LAS, &LAKo. Are these Unimogs? What? I'm sure the OM 352 is well known here.<br> <br> I think the engines date from 1972. Any clues about who might have done the conversion to marine for Mercedes back then?