I will answer my own question, After talking to others they all tell me
a stock Kohler crank won't live in the class I will be in no matter
what is done to it. So I am going to have to wait till I can get a
steel crank. Maybe I can find a good used one.

--- In gtpullinginwisconsin@yahoogroups.com, "tuffy_puller"
<tuffy_puller@...> wrote:
>
> Hello, Has anyone tried the cryo treatment on a stock Kohler
> crankshaft? I am going to be building a modified K341 for a .060 over
> class. It will be on alcohol and get turned pretty hard. I have been
> told a stock crank won't last very long before it breaks in the rod
> journal. I can't afford the $400 to $500 for a new stock stroke steel
> crank so I was wondering if cryo treating a stock crank along with a
> good balance job would get it to last a season of pulling? Maybe
after
> the tractor is all together and dialed in I can get a good steel
crank
> later, or maybe I can find a good used steel crank. I am building a
> tractor for the pro mod classes in the WGTPinc club.
>