how long under water? what have you done to determine that its toast. i remember back in the katrina days of many boats that
sunk, and engines saved.
as i recall they used marval mystery oil and flooded the cylinders with it. they would just try to unlock it and turn alittle more each day.
i talked to one guy personally that bought (stole) 2 late model benetaus at auction and got them both running again.
mike