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Old 01-23-2008, 10:23 PM
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Jac Mac Jac Mac is offline
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Join Date: Feb 2006
Location: Gore. New Zealand., SI
Cobra Make, Engine: DIY Coupe, F/T ,MkIV.
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An 0.050" overbore to 4.130" is going to remove 0.025" from the cyl wall, so subtract 0.025" from any of those dimensions on the chart to give you the wall thickness remaining at those points. eg 0.150" - 0.025" = 0.125" thickness. Then comes the 'fudge' factor, how much corrosion in the water jackets, were there any thinner spots than those points checked etc etc. I would play it safe myself & settle for less cubes, just BS everyone that its a 428.

Jac Mac

Last edited by Jac Mac; 01-23-2008 at 10:28 PM.. Reason: Forgot it was already 0.030" OS
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