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Old 12-29-2014, 11:15 PM   #204
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Join Date: Sep 2010
Posts: 410
Default Re: Boring a flathead

I just pulled my flathead and it ended up being a 1941-42 that has a 3 3/16 bore but it's not a mercury. Is there still life in her? How much can you go on that year a motor and be safe?
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