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90mm ls6 intake

This is a discussion on 90mm ls6 intake within the External Engine forums, part of the LSx Technical Help Section category; I found a website that described a 90mm ls1 intake. But the link to see how to modify the ls6 ...

  1. #1
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    1986 Turbo 944

    90mm ls6 intake

    I found a website that described a 90mm ls1 intake. But the link to see how to modify the ls6 intake did not work.

    does anyone have a link to this.

    This is the only thing left bottle-necking my new n/a engine build.

  2. #2
    Sold: LS1 '85 El Camino ls1camino's Avatar
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    2000 Grand Prix GTP
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    IMO, it's a waste of money.

    What they do is they chop the front off of a LS2 Intake (90mm) and epoxy it onto the front of a LS6 Intake.

    The reason it's a waste of money is because a used LS6 Intake will run you about $300-350 and the service is $300. For that amount of money you can buy a used FAST 90 that will outflow any LS6 Intake. A FAST intake will also look a lot better because it won't have the epoxy on the intake.

  3. #3
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    1986 Turbo 944

    Just curious, I have an ls6 intake. But if it is piecing an ls2 intake to it, I can see where it could get expensive find one of those.

    From the research I was doing, the ls6 intake was performing just as good as a fast intake if it had the 90mm TB. But I see the point.

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