IS there any physical difference between the La360 vs. magnum 5.9 Crankshaft???

Looking at the discolouration of the crank journal, and the condition on the bearing itself , was there any indication of a coolant contamination issue?
There was a bit of surface rust on the first 4 rocker arms on the left bank but i figured it was normal for a junk yard motor.
I personally have not run it yet. I pulled it out of a junk yard Durango earlier in the year.