I will be looking it over visually and measuring a few things, I might not know much more for a bit because nobody bought my race car which was to help fund the Hemi for my '66 Barracuda.....And finding a chevy journal 4.15 crank has been a lost cause.
Barton told me he has built 30-40 of these blocks this year with little to no problems.
I guess your looking for something better, but Eagle makes ( or used to make) a 4.15 crank with 2.2 journal.
I bought one a year or two ago
Found it.
https://www.jegs.com/i/Eagle/356/444241502200/10002/-1 
