Generation III Internal Engine 1997-2006 LS1 | LS6

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Valve size

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Feb 28, 2004 | 08:53 AM

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Valve size

What are the largest valves as far as intake and exhaust valves that can be installed on stock valve seats. In the Chevy performance book for LS1 & LS6 says you can go to 2.02 & 1.60 is this information correct.

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Feb 29, 2004 | 06:09 PM

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99 Black Bird T/A

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To the best of my knowledge 2.02 & 1.60 is the max for the stock valve seats.

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Feb 29, 2004 | 06:32 PM

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Quote:

Originally Posted by 99 Black Bird T/A

To the best of my knowledge 2.02 & 1.60 is the max for the stock valve seats.

yep,that's as big as you can go.

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