Just bare in mind that coolant in the oil can cause rod bearings to look similar to that....but does look like rough crank surface.Don't worry about the bearings; how is the crank? Bearings are cheap! Check prices on ebay.
Are the crank bearing surfaces smooth to the touch (and eye)? If so, get a buddy with a mike to check the dimensions. If they're within factory spces.; put in a set of new rod and main bearings and you're good to go.
The bottom end is easy as cake! Tear it apart, drag it down to a machine shop to check the journals, and have the necessary surfaces taken care of, they can also usually get you a bottom end kit that is exactly the right size for everything. Also judging by the wear on those rod bearings you should also spring for a set of cam bearings to be installed as well.The guy I bought it from did not say the bottom end was rebuilt. He said the motor was running and from a wrecked car. I was hoping to clean it up and change some gaskets and put it in my Falcon.
The light grey area is a coating that is missing over most of the surface.
The bearing clearance was .003"
I don't think this is usable but I've never rebuilt a bottom end of a motor. I was looking for some opinions from this forum.