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Valves

This is a discussion on Valves within the External Engine forums, part of the LSx Technical Help Section category; What is the stock size vavles(intake and exhaust) for the 99 LS1 with the 843 Heads(853...843...one of those numbers) What ...

  1. #1
    Member Phlash_riot's Avatar
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    Midnight Blue
    1999 T/A

    Valves

    What is the stock size vavles(intake and exhaust) for the 99 LS1 with the 843 Heads(853...843...one of those numbers)

    What is the max size you can put into it?

  2. #2
    Senior Member mrr23's Avatar
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    dark bowling green
    2000 corvette

    2.00/1.55

    max, i have 2.02/1.60 in my heads.

  3. #3
    Member Phlash_riot's Avatar
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    Midnight Blue
    1999 T/A

    Thanks.

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