Thread: Starting over in so many ways
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Old 05-04-2020, 11:37 AM
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Jerry Clayton Jerry Clayton is offline
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Join Date: Jul 2005
Location: Bartlett, Ill
Cobra Make, Engine: Everett-Morrison LS1
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because of the differance in bore size between 390-427----------the best 427 heads valves won't clear cylinder walls on 390--------
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