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Old 12-11-2022, 12:57 AM   #17
40 Deluxe
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Join Date: May 2010
Location: now Kuna, Idaho
Posts: 3,835
Default Re: Do I have a mercury crank?

Quote:
Originally Posted by A bones View Post
The difference would be is it virgin, or was it stroked to get to four.
I don't believe that you can go from 3 3/4" stroke to 4" without welding the rod journals or having custom made rods with a smaller big end diameter. (never heard of such a rod though!)
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