Re: mariner 40 question
Well, if it's like the '94 Mariner 40 hp 4 cyl, it's the 44 cu in block with cross flow fuel scavenging Merc built since the '50's with upgrades over the years like going from the magneto (don't know year) to all solid state ignition, using stainless steel for prop and drive shafts, improved water pumps and things like that.
Should be a rock solid performer.
Mark