Here i have more usefull data that will help to understand the size of this problem better.
Tech told me that they where using the rod bearing size according to the code for each conrod attachment to the crank and despite that clearence was wrong.
After that told me factory has made recently new technical tips about this.
Thats why they are meassuring EVERYTHING and thats why they have to order new size bearings because the ones suggested by nissan DOES NOT MEET THE CLEARENCE.
So in my opinion thats why almost every engine knock.
Stock 100% brand new part dont meet the factory aceptable clearence.
He gave me his word the repair will be flawless.
But after that information i can say there is 0 QC in the factory and they dont give a damn about the quality of the engines they are building.