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What is the inlet diameter of the ls6 intake manifold?

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Old 08-01-2009, 02:02 PM
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Default What is the inlet diameter of the ls6 intake manifold?
also would a larger diameter throttlebody help on a stock ls6 manifold (have a stock ls1 right now).
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Old 08-01-2009, 05:02 PM
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the mouth of a ls6 intake is 78mm, i dont think putting a larger tb would help,
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Old 08-01-2009, 08:46 PM
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Originally Posted by johnster
the mouth of a ls6 intake is 78mm, i dont think putting a larger tb would help,
I agree but can the stock ls1 tb be ported to 78mm? I have heard the stock tb is more like 73mm.
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Old 08-01-2009, 09:03 PM
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you can p&p the inlet of the tb but not the center (where the blade is).
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