After all the bad stuff I am finding with this motor, I decided to check all the main & rod bearing clearances with plastigage. It isn't as accurate as a micrometer/bore gauge, but it's supposedly within .0005", so that's close enough to get an idea of how it was put together.

This is what I came up with:

Mains
.0020
.0019
.0017
.0019
.0018

Rods
.0017
.0018
.0020
.0020
.0018
.0021
.0020

It's a little difficult to get an exact (to the ten-thousandths) reading because the lines on the paper aren't broken down that far, so it's really a best guess. I did it with the red and green and the red tended to read the same or a little higher than the green. For instance, I did one with the green and it read .0016. I double checked it with the red and it read .0020. So, who knows which is accurate.

These are a little tight compared to what I have read is optimal (.0025-.0027) but I understand that the plastigage tends to read a little on the low side compared to a micrometer/bore gauge. I called Clevite tech and he said it's well within the spec window. For the 440, he showed a huge acceptable range, for example, one I remember is for the mains which was .0008-.0030!

So, this is good news and I can move on to the valve train.