I will be very interested in seeing what a good shoeshine with the appropriate sanding cloth can do to rehab that bearing surface.
I see the pits mentioned but all in all it seems to me the grooves are not deep and a (reasonably) successful outcome is within reach.
Keep us posted on your process and results….
Chuck
What year is your engine? Do the main bearings have shims? If so, you will have more wiggle room if you need to do a little bit more than light polishing. The final oil clearance is obtained by removing a layer or two from the stack of shims which are currently there.
Since the connecting rods are in the way of freely spinning the crank to feel for resistance as you remove a shim, I recommend that you use plasti-gauge to check your bearing clearance.
