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Farmall & IHC Tractors Discussion Forum
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H vs super H crankshaft

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skk-big red fan

12-15-2007 20:45:13




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Do you have to line bore a std H block to use a super H crank, or only use the main and rod bearings for a super H with the super H crank?




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El Toro

12-16-2007 06:48:48




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 Re: H vs super H crankshaft in reply to skk-big red fan, 12-15-2007 20:45:13  
There's a difference between the H's before S/N
391358 as the rod journals and mains were smaller in diameter. From S/N 391358 and up they were same diameter as the Super H's. The mains are about .060" thicker and the rods are about .050" thicker. I don't know if the same rods are the same on both tractors. Hal



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Andrew Z

12-16-2007 06:59:39




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 Re: H vs super H crankshaft in reply to El Toro, 12-16-2007 06:48:48  
The rods from the H can be used in the Super H or vice versa. The reason is that the Super H uses thinner bearings, than the H.

Andrew



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georgeky

12-16-2007 05:34:23




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 Re: H vs super H crankshaft in reply to skk-big red fan, 12-15-2007 20:45:13  
Best I remember the main journals are the only thing different between the two. So just use the SH main berings as the others are the same.



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