Have had a lot of help with my last project so am seeking info on a new issue. Is there a link i can access or somebody who can tell me how many frost plugs and locations for a 1988 Merc cruiser 3.7L engine? Thanks in Advance. Theboyner
I really don't think the 3.7 has any core plugs. Since it's open deck, there would not be any need for them. There is a core plug style plug installed over the cam.
