Yeah Jason, I got quite and education in this crank grinding stuff. Evidently there are several ways to harden cranks depending on how the cranks are made.
We had 2 crank grinders do the cranks for this project. Mention this "offset grind" stuff and they go crazy with opinions. It boils down to 2 options: full cheeks and partials. The last article showed my 235 crank - I had no problem with not having full 360 degree cheeks. Doc's 261 will have them so everyone can see both options.
When they looked into the REO crank, it came back that the blueing was how those cranks were hardened. But there are multiple ways to do it. pm me and I can give you both crank guys if you want the details - or better yet - follow along and you can see both shops referenced in the articles. Not sure when the 261 crank article will be posted, however.
Stay tuned.
