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Looking for a 400 or maybe a 426 crank - Advice?

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It was a pretty disappointing morning.  I was attempting a leak down test on my 99 WR400 and managed to break off the crank nut.  I guess that means the top end is pretty tight. :rolleyes:


Does anyone know if the crank halves the same between the 400 and the 426?  From searching it looks like the con rod small ends are different between the two engines.  I am not sure on the crank halves.  If the crank halves are the same that adds some more used options. 

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