[Superman]

Just from wiggling the rods back and forth, the rod bearings feel pretty tight. And there seems to be very little room for hands in there, even small hands. I appreciate everyone's comments.

FWIW, I am still thinking that I will not split this case. Now, I am even thinking I may leave the rod bearings alone.

I have at times planned to split the case. But the wisdom prevailing in my mind right now is the "Everything is almost certainly very fine there and disturbing it may be as unwise as it is wise." I have very excellent oil pressure. The engine is a 3-liter. I have every reason to suspect that a look in there would reveal that everything is in nearly new condition. I'm not kidding. If I were to go in there, it would be to get at the layshaft bearings.....which are not making noise anyway.

I do appreciate everyone's input, whether you agree with me or not, and I'll keep listening with an open mind.