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-   -   K161 (https://www.onlycubcadets.net/forum/showthread.php?t=29930)

darkminion_17 02-09-2014 04:26 PM

K161
 
What spec # would a k 161 with the 2 7/8 bore be?
It has a 2 piece cam in it.

J-Mech 02-09-2014 05:26 PM

What are you looking for Lew?

Near as I can tell, the spec #'s started at 2801. The piston part numbers sub to the new number for the larger bore if you use 2801 as the spec #.

Does that help?

darkminion_17 02-09-2014 06:18 PM

Jonathan,
Spec # is 281033h.This was in a 70 but it has 4 holes threaded in the block on the pto end ,so I am thinking it is not a cub block,but it was fine in the 70.PTO and the crank dia were the same.
This was already bored out .030 I thought the early blocks were able to be bored to the newer 2 15/16 bore which is STD.Seems like a lot of meat left to bore it larger

J-Mech 02-09-2014 06:31 PM

Near as I can tell by the parts book, the old motors can be bored to the 2 15/16", then over-sized to .030" All old piston part numbers sub to the new "standard" sizes and are available to .030" oversized. No notes saying that they can't be...... :bigthink: So I'd say you are correct.

darkminion_17 02-09-2014 06:34 PM

Thanks for the info,thought it was able to be bored larger,so just another block to hang onto.


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