Hi, IO -
Help me review what I did - as to the tools I have available, I've got an inside mic, a bore gauge, T bore gauges, 1,2,3 and 4" OD mics, two dial indicators and a pair of calipers, one a dial, the other, digital readout.
I tried to ball park numbers with the calipers to no avail due to clearances in the block. The T-bore gauge I used to confirm the inside mic dimensions cold - checking the two tools against each other. I did this because I haven't used in ID mic very regularly, and I wanted to feel comfortable with the results I was getting. I used the first cylinder bore as a baseline reference, and set the dial bore indicator to zero. From there, the additional numbers were generated by reading the dial bore and adding to the reference number.
When the block got hot, the dial indicator was used to determine the bore changes, the readings were added to the reference number, and that it was how those numbers were generated.
I've got extensions for my ID mic, and I think I COULD determine overall growth of the block both lengthwise and widthwise.
I'm hoping an interference fit with a heated block and cold liners is possible.
Let me see what I get with the liner tonight. I'm thinking if we can get to a .005 interference fit cold, even hot, it should still be tight enough with clamping pressure, O-rings, and a more stable step cut.
Definitely more stable than the stock configuration.
My concern at that point is cracking the block . . .