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What size is the stock LS1 throttle body ?

This is a discussion on What size is the stock LS1 throttle body ? within the Nitrous forums, part of the LSx Technical Help Section category; Is it 78mm ? I was looking at the HSW plate kit upgrade. But I don't know if that is ...

  1. #1
    Senior Member Danger731's Avatar
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    What size is the stock LS1 throttle body ?

    Is it 78mm ? I was looking at the HSW plate kit upgrade. But I don't know if that is the stock one or not.

  2. #2
    Senior Member mrr23's Avatar
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    white & black
    1999 & 2000 formula

    75mm. the 78mm plate will work.

  3. #3
    Senior Member Danger731's Avatar
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    thanx

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