Thread: Valve size ???
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Old 12-12-2002, 07:39 PM
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Join Date: Nov 2001
Location: Sugar Land, TX
Cobra Make, Engine: I had lots of little Cobras until Oscar the house thief stole all of them
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Question Valve size ???
Is anybody here running 427 valve sizes on a 390 ? I know about notching the bore for clearance but are the larger valves worth the added work ? Again I'm looking for as close to 500 hp as I can get, I would like 450 + at the rear wheels.
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