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90mm LS2 intake

This is a discussion on 90mm LS2 intake within the External Engine forums, part of the LSx Technical Help Section category; What do I have to do to a LS2 intake to make it work on a 1998 LS1? I figure ...

  1. #1
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    90mm LS2 intake

    What do I have to do to a LS2 intake to make it work on a 1998 LS1? I figure that a 90mm LS2 intake is the cheapest, highest flowing intake. A modded LS6 will out flow it,but most places want alot of money to mod an ls6 intake.

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    I think the ls2 intakes are completely different and can't be modded to fit an ls1.

  3. #3
    Pathelogical Liar BlackLT1Z28's Avatar
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    Quote Originally Posted by Wikid NaSSty View Post
    I think the ls2 intakes are completely different and can't be modded to fit an ls1.
    Don't know a whole lot about the Gen III and Gen IV LS-series blocks, but I would have to agree that the LS2 intake , though looks similar, is a different design and would not fit the LS1.

    If you want a 90mm intake, get a F.A.S.T. LSx intake. Anyone who is anyone has one of those on their LS block.

  4. #4
    Quote Originally Posted by phoenix1987 View Post
    A modded LS6 will out flow it
    Regardless of flow numbers, stock LS6 intakes usually make more power that the LS2.

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    Get a FAST LSX intake and TB. Not only does it make more power, it looks soooooo much better, expecially with their fuel rails!

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    A Modded Ls6 makes a few more horse than a 90mm LS2. I just read it in a Lsx intake comparo. LS6 intake $300-468, then to mod it from TPIS $400! A unmodded lS2 intake $300-$400.


    See my point? I do not want to spend over $500 on an intake.

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    Quote Originally Posted by phoenix1987 View Post
    A Modded Ls6 makes a few more horse than a 90mm LS2. I just read it in a Lsx intake comparo. LS6 intake $300-468, then to mod it from TPIS $400! A unmodded lS2 intake $300-$400.


    See my point? I do not want to spend over $500 on an intake.
    Intakes are expensive.....and for less than 500 you are only going to get an unmodded ls6 or maybe Aluminum BBK (I think its a BBK?).

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    Quote Originally Posted by Wikid NaSSty View Post
    Intakes are expensive.....and for less than 500 you are only going to get an unmodded ls6 or maybe Aluminum BBK (I think its a BBK?).

    i can get an Ls2 intake of ebay for the price of a Ls6

  9. #9
    Quote Originally Posted by phoenix1987 View Post
    i can get an Ls2 intake of ebay for the price of a Ls6
    I thought you were trying to save money here. Again, not only will the LS6 make more power stock, untouched, but it WILL be cheaper. Why? Because you can run a regular cable style stock ported TB with the LS6. The LS2 only accepts a drive by wire TB, or an EXPENSIVE aftermarket TB.

    Again, and finally, just get the damn LS6 intake. I don't care what that article you read said...

  10. #10
    Member Phlash_riot's Avatar
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    What other manufacture out there offers a good intake manifold? I gather from reading that "FAST" is the prefered...but are they the only game in town out there taht is worth a crap?. Also fot the TB, What is the biggest TB i can put on a stock (1999 TA) intake maifold?... without comprimising (IE i don't want error codes to pop-up and won't go out of CA smog lagalitites)

    Thanks for the help

    - Newbie

  11. #11
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    Quote Originally Posted by Marc 85Z28 View Post
    I thought you were trying to save money here. Again, not only will the LS6 make more power stock, untouched, but it WILL be cheaper. Why? Because you can run a regular cable style stock ported TB with the LS6. The LS2 only accepts a drive by wire TB, or an EXPENSIVE aftermarket TB.

    Again, and finally, just get the damn LS6 intake. I don't care what that article you read said...
    Well said^^^^^
    90mmFAST with a 90mmNick Williams throttle body and headers with a good flowing exhaust...

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