Quote:
Originally Posted by Ronnieroadster
Well anyone who has spent time building lots of Flathead s should know the second counterweight is wider on the Merc crank than the Ford! Heck the difference is plenty enough to see without measuring if you build enough of them. Not to mention the cranks are not the same weight just saying. Another detail to mention not all Merc crankshafts have 5/8" oil plugs I have seen 1/4" on a few also.
Ronnieroadster
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Ron,
Have you found that the extra weight impacts fuel economy in any way?