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Generation III Internal Engine 1997-2006 LS1 | LS6
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Throttle Body question

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Old Sep 22, 2010 | 10:58 PM
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Default Throttle Body question
When you measure the size of your throttle body, do you measure the biggest opening on the front or just the size of the hole for the butterfly valve?
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Old Sep 22, 2010 | 10:59 PM
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The diameter of the blade is what most use. Stock LS1 is 75mm, stock LS2 is 90mm, etc.
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Old Sep 22, 2010 | 11:08 PM
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Ok thats what I was thinking. I was told wrong when I bought the engine, they said it had a 90mm but it turns out to just be a 75 but that should work with the ls6 intake.
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