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Generation III Internal Engine 1997-2006 LS1 | LS6
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Difference between 2001 and 2002 243s?

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Old 07-09-2006, 03:47 PM
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Default Difference between 2001 and 2002 243s?
Are they the same?
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Old 07-09-2006, 04:17 PM
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bump.
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Old 07-09-2006, 04:22 PM
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The difference is the 02-04 243's come with lightweight valves, the 01's do not. Lightweight valves will be better for high rpm use (6500 to 7000+ rpm).
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Old 07-09-2006, 04:24 PM
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That is the only difference, the casting is the same foam cast? thanks.
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Old 07-09-2006, 04:31 PM
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Originally Posted by 98camaroLS1M6
the casting is the same foam cast?
I'm sure it is, they're all 243's.
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