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Briggs Flathead / Re: Opposed stroker 46ci
« on: August 19, 2017, 11:26:30 pm »
I can't tell you the part numbers but there are two different 46ci engines one has the same bore as the 42ci with a longer stroke. The other has the same stroke as the 42ci but a bigger bore. Combine the two different 46ci blocks and cranks and you get nearly 50ci.