Interesting! I just heard about a 4.125 crankshaft from K1 with the SJ Chevy pin. They do not show it in their catalog but evidently it is now a standard item.

I'm going to have to put all of this info in my next book. Jim Szilagyi's book is only a few years old but it is already out of date on these various crankshaft options. His book didn't show anything from K1 or SCAT for instance nor did he show the special crank that Hughes has.