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Reply to "Boring 351C"

When I rebuilt my Cleveland I had to bore it 30 over. The machine shop I used was really aware of the cleveland having thin bores. He sonic tested each cylinder to find the thin spots. In my case he told me I can bore it to 40 over but that's it. If I ever need to rebuild my engine again and 40 over is not enough I will be looking for a stout aftermarket block.

I recommend you sonic test the bores to be sure.
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