I have an Evinrude 120HP VRO model that needs a new power head, but do not know the year. I know the 120's were produced from the late 80's to early 90's. I found a stamping on what looks like a freeze out plug, G2551874. The heads also have numbers caste into them 333686-1, on the port side, and 333686-2, on the starboard side. On all three there is, what looks like a manufacturers emblem "M", with a border surrounding the "M". Is this enough information to tell me the year of this engine? Thank you.
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