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what size tb should i use??

This is a discussion on what size tb should i use?? within the LT1 forums, part of the Vehicle Specific category; i have a 97 trans with a 383 stroker....

  1. #1
    Senior Member 440 rwhp trans am's Avatar
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    red ta orange gto
    97 trans am 06 gto

    what size tb should i use??

    i have a 97 trans with a 383 stroker.

  2. #2
    Member SSmoky01's Avatar
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    Navy Blue Metallic
    2000 Camaro Z-28 SS

    Go with the 58mm from ASM. Not only does it look cool but it flows big time!!!
    2000 SS #1827,NBM,A4,leather,t-tops,lid,eibach springs,hotchkis lca's,slp lid,slp cold air induction,slp loudmouth,baer brakes up front,13.11@107 on street tires,12.90@109 on dr's....time for the cam and intake to be installed

  3. #3
    Pathelogical Liar BlackLT1Z28's Avatar
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    Black
    94 Camaro Z28

    There is a guy on ebay that sells TB's for cheap. He rebuilds them and powdercoats them to your color choice. Then he refunds some of that money when you send him your old TB.

  4. #4
    Senior Member 5.0THIS's Avatar
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    red
    95 Z28

    Are you at 440rwhp as your username would suggest? The stock throttle body really isnt that big of a restriction. A 52mm would more than suffice, but dont expect any huge gains from it.

  5. #5
    Senior Member 440 rwhp trans am's Avatar
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    red ta orange gto
    97 trans am 06 gto

    Quote Originally Posted by 5.0THIS View Post
    Are you at 440rwhp as your username would suggest? The stock throttle body really isnt that big of a restriction. A 52mm would more than suffice, but dont expect any huge gains from it.
    i dont expect any huge gains from it but want to have it before i tune it again

  6. #6
    Member jasonisdn's Avatar
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    red
    96 ss

    avoid BBK and Holley

  7. #7
    Junior Member
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    Red
    1995 Chevy Camaro

    If you go 58mm, you have to remove your intake manifold and have it ported. The machine work on that is around $100, and then you have to get a gasket kit that is around $30 and then the labor to remove and install the manifold. Oh, by the way, Its 100% pointless to go 58mm. Trust me, I spent the money.... Im runnin 58mm. 52mm is where its at. Im sure you have herd of the "Nomad" TB's. Google them if not. Hes one of my good buddys. He builds an AMAZING T-body and its cheaper than hell.

    -Drew

  8. #8
    Junior Member nemanracing's Avatar
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    Pewter Metallic
    1999 Formula

    52mm FTW!

    1996 Camaro Z28,T56,LT1,Awaiting Resurrection...
    1999 Formula,4L60E,LS1,DD
    EMD Motorsports Home Page

  9. #9
    Junior Member
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    Red
    1994 z28

    58 mm. Summit released one recently. MHO looks like good quality and fair price.

  10. #10
    Junior Member nemanracing's Avatar
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    Pewter Metallic
    1999 Formula

    eh i only paid $50 for my 52mm, gotta love hand me downs from friends...

  11. #11
    Junior Member
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    white&black
    1995 camaro ss

    If you go 58mm, you have to remove your intake manifold and have it ported
    this is true but i had this done and my heads at the same time and that 58mm
    and the port work big gains

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