Ill be getting to use a dial bore gauge. Im going to borrow it on friday and measure the bore's on either sat or sunday. I was gonna do it last weekend but something came up.
Perfect man. That is really the best way to do it.
Keep in mind the gauge itself will need to be set up prior to use too. This is typically done one of two ways. 1) using a ring gauge that is precision ground, to "zero" out the dial. So for example if you have a ring gauge that is 3.445" (stock bore) or 3.465" (for .020 oversized), you would insert the gauge in it, and adjust the dial indicator so the needle is at zero and lock it in.
The second way of doing it is to use a micrometer set to your desired diameter, and carefully use the mic to do the same process as above to zero out the indicator.
Once that is done, you should measure each cylinder at the top (~.500 down from the deck), in the middle, and at the bottom of each bore, and do each top/mid/bottom at a 12/6 o'clock position AND at a 3/9 o'clock position and write each dimension down(just write the +/- readings from the guage). This will tell you how much, and where the wear in each cylinder is at.
I know your dad is (or was) a diesel mechanic, so hopefully he can help out with this too, but please let me know if you do not understand this process 100% as it's critical that the readings be recorded correctly.
Let me know Richie!