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Can the cylinder walls be sonic checked? That would be the only true way to determine if it is a safe overbore. When you remove too much material you may begin to experience heating issues, but more importantly the rigidity and structural integrity of the block begins to be compromised. Ring seal is not as good due to cylinder wall flex.
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Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way 
Last edited by Rick Parker; 06-01-2007 at 01:14 PM..
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