While my son spent a whole day in the parts washer, I removed parts from the newly extracted engine and also started to build up the block we had machined for first oversize on piston bores and crank bearings.
We had the unfortunate event to notice that the previous owner had ordered the wrong main bearings for this block. The old block had the older style with the thrust washers molded into the third bearing, but we needed the one with the separate thrust washers (bearing).
While taking apart the removed engine, we found most bearings were scored and one was even melted. It's a good thing we had a newly turned and polished crankshaft.