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ls2 intake for an ls1?

This is a discussion on ls2 intake for an ls1? within the External Engine forums, part of the LSx Technical Help Section category; so i found this ls2 intake on ebay guy claims its a 90mm intake it has the cathedral style ports. ...

  1. #1
    Junior Member Steve's LS1's Avatar
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    ls2 intake for an ls1?

    so i found this ls2 intake on ebay guy claims its a 90mm intake it has the cathedral style ports. will this work on my ls1? he says its a better upgrade than an ls6 intake is this so? could you help me out on this one? thanks...

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    Junior Member prater_1's Avatar
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    im pretty new to the ls engines but i think that the ls2 intakes have rectangle port!? BUT i could be wrong!!

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    Junior Member Steve's LS1's Avatar
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    Quote Originally Posted by prater_1 View Post
    im pretty new to the ls engines but i think that the ls2 intakes have rectangle port!? BUT i could be wrong!!


    he's got pics of the intake, and they are cat. ports. and it takes a 4 bolt TB the Intake manifold PT# 12589181

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    Senior Member 98maro's Avatar
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    i could be wrong....
    i posted a thread before with the same question..
    it is a 90mm but for what i was told the ls6 still flows better than the ls2 intake
    and i dont if its matter but the TB on ls2s are electronic..
    so finding a TB could be kida hard..idk thats just a guess
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    Senior Member TLS_Addict's Avatar
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    LS6 is better than LS2.....pretty much isnt the LS2 the same as the LS1 - EGR? Cant remember.....

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    Junior Member Steve's LS1's Avatar
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    Quote Originally Posted by TLS_Addict View Post
    LS6 is better than LS2.....pretty much isnt the LS2 the same as the LS1 - EGR? Cant remember.....

    it could be, i dont know. but thanks for telling me the ls6 is better, thats what im gonna go with.

  7. #7
    Junior Member Steve's LS1's Avatar
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    Quote Originally Posted by 98maro View Post
    i could be wrong....
    i posted a thread before with the same question..
    it is a 90mm but for what i was told the ls6 still flows better than the ls2 intake
    and i dont if its matter but the TB on ls2s are electronic..
    so finding a TB could be kida hard..idk thats just a guess
    do you know what the ls6 mm is? and i found an adapter plate for an ls1 tb to an ls2 intake for $70 but im gonna go with the ls6 intake. if i could find one im my p.r.

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    Moderator 98TransAmWs-6's Avatar
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    Quote Originally Posted by Steve's LS1 View Post
    do you know what the ls6 mm is? and i found an adapter plate for an ls1 tb to an ls2 intake for $70 but im gonna go with the ls6 intake. if i could find one im my p.r.
    ls6 is ~75mm

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    Junior Member Steve's LS1's Avatar
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    Quote Originally Posted by 98TransAmWs-6 View Post
    ls6 is ~75mm
    thanks...

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    Member c5z28's Avatar
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    Stock the ls-6 flows better. There is a company however that ports them to outlfow the ls-6 and flows just under a fast 90mm. I don't know the company name though.

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    autoconnectionllc.com 02transamce's Avatar
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    TPiS sells a ls6 intake with a 90mm snout.
    Posted via Mobile Device

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    Member 88gtman's Avatar
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    According the the book I have called Dyno Proven LS1 performance. The LS2 only showed less than a 10hp gain at the crank. You are much better off getting an LS6, BBK, or FAST.


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