[Yosemite Sam]

I'm changing my earlier statement in this thread about starting with a naked block...

There were at least two different Kohler blocks, a wide base and a narrow base, I do know that some JD's used the wide base block, not being into "off color" tractors I don't know what ones used what engines, but you will be well served to learn to tell the difference before you start a project with a "different" block.

Sorry for the mis-information in my earlier post.

And Yes the 241 and 301 cranks are different... No wait, the wrist pins are different sizes, CRAP I don't remember for sure now.

Someone else help me out here...