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post #1 of (permalink) Old 06-21-2008, 07:03 AM
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LT1 cylinder head question...?

are there any differences between the aluminum cylinder heads and the cast iron cylinder heads other than the metal used? are they cast the same? are the combustion chambers, intake and exhaust ports exactly the same? can you improve hp and performace if you swap the cast iron ones with the aluminum ones?
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