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What year did GM start using the better LIM gaskets

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Old 02-25-2011, 04:05 PM
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Default What year did GM start using the better LIM gaskets
at hat model year on the 3800 did GM start using the metal gaskets ?
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Old 02-28-2011, 07:23 AM
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IIRC it was around 04-06. Not entirely sure though. If you look by the thermostat where the head and intake come together you can see if it'* plastic (black) or new aluminum and silvery
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