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I NEED PART #'s

This is a discussion on I NEED PART #'s within the General Help forums, part of the LSx Technical Help Section category; Ok so my cousin the one i bought my 1999 trans am m/6 from is being an ass and wont ...

  1. #1
    Member screaminbird's Avatar
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    I NEED PART #'s

    Ok so my cousin the one i bought my 1999 trans am m/6 from is being an ass and wont tell me anything done to internals or anything so far that i know of i have an LS7 Clutch,Short throw shifter,air lid,msd wires,hooker long tubes egr/delete,mandrel bend exhaust and no air pump i stole his dyno sheets from him and it had 383.57hp and 347.17ft-lbs at the wheels does this sound right with stock internals. Anyways now i need help with part #'s. To see if my MAF,Throttle Body, and Intake manifold are stock, please let me know asap if they are


    Intake Manifold-# 1 2 5 6 0 6 8 8

    Throttle Body- # 7 0 4 0

    MAF- # 8 9 8 7 1 9 1 4 5 7 5


    any help is appreciated also where is the part # on the heads can i get to it without dissambling alot of stuff

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    Quote Originally Posted by screaminbird View Post
    Ok so my cousin the one i bought my 1999 trans am m/6 from is being an ass and wont tell me anything done to internals or anything so far that i know of i have an LS7 Clutch,Short throw shifter,air lid,msd wires,hooker long tubes egr/delete,mandrel bend exhaust and no air pump i stole his dyno sheets from him and it had 383.57hp and 347.17ft-lbs at the wheels does this sound right with stock internals. Anyways now i need help with part #'s. To see if my MAF,Throttle Body, and Intake manifold are stock, please let me know asap if they are


    Intake Manifold-# 1 2 5 6 0 6 8 8

    Throttle Body- # 7 0 4 0

    MAF- # 8 9 8 7 1 9 1 4 5 7 5


    any help is appreciated also where is the part # on the heads can i get to it without dissambling alot of stuff

    Intake manifold is the LS1 intake, which is stock for 99 models.
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    I'd rather be bi than full homo!!!!

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    Member screaminbird's Avatar
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    where would i find the head numbers and does that dyno sound right

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    F-Body Genius Another WS6 Guy's Avatar
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    Quote Originally Posted by screaminbird View Post
    Ok so my cousin the one i bought my 1999 trans am m/6 from is being an ass and wont tell me anything done to internals or anything so far that i know of i have an LS7 Clutch,Short throw shifter,air lid,msd wires,hooker long tubes egr/delete,mandrel bend exhaust and no air pump i stole his dyno sheets from him and it had 383.57hp and 347.17ft-lbs at the wheels does this sound right with stock internals. Anyways now i need help with part #'s. To see if my MAF,Throttle Body, and Intake manifold are stock, please let me know asap if they are
    With those mods, i seriously doubt it would make those numbers at the wheels. Knowing that a bone stock 02 SS A4 dyno'd at 296whp, i'd say the tock 99's put down around 280-290 at the wheels so intake/exhaust/egr delete/wires wouldn't make 100whp. Not even with a tune. It probably has a small cam like an LS1 hot cam or a ZO6 cam. That's my guess.

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    Member screaminbird's Avatar
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    how would i tell when i pull it out

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    F-Body Genius Another WS6 Guy's Avatar
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    Quote Originally Posted by screaminbird View Post
    where would i find the head numbers and does that dyno sound right
    the stock head number should be 12559853. And they are located either between number 1 and 2 underneath the valve cover or on the back of the head.

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    so id have to take off the manifold and stuff, oor should i try taking off the valve covers first

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    F-Body Genius Another WS6 Guy's Avatar
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    Quote Originally Posted by screaminbird View Post
    so id have to take off the manifold and stuff, oor should i try taking off the valve covers first
    I'd pull just the coil pack assembly and valve cover on one side (driver) and check in the rocker valley.

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    Member screaminbird's Avatar
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    sweet ill have to do that in the morning yah do you know if my maf and tb is stock the only reason i ask is because when i pulled it to clean it the gasket on it looked newer

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    F-Body Genius Another WS6 Guy's Avatar
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    Quote Originally Posted by screaminbird View Post
    sweet ill have to do that in the morning yah do you know if my maf and tb is stock the only reason i ask is because when i pulled it to clean it the gasket on it looked newer
    The gasket is a rubber molding ring so it will always look newer. Like an orangish red color? Let me look around for the stock MAF and TB numbers, if I find them, I'll let you know.

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    Member screaminbird's Avatar
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    thankyou so much for the tips and info i appreciate it

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    F-Body Genius Another WS6 Guy's Avatar
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    25179711 STOCK LS1 MAF Part Number

    17113390 STOCK Throttle body for 98-99 F-body

    I don't know how you came out with a 4 digit number???

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    Quote Originally Posted by screaminbird View Post
    thankyou so much for the tips and info i appreciate it
    no problem. that's what we're here for.

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    Member screaminbird's Avatar
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    its right ontop of my tb

    so then is my maf aftermarket

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    F-Body Genius Another WS6 Guy's Avatar
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    Quote Originally Posted by screaminbird View Post
    its right ontop of my tb

    so then is my maf aftermarket
    I think the p/n on the tb is on the side of it? And I'd say the maf is aftermarket but I'd look all over it and make sure there's not a diff p/n on it.

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    there is now a sticky thanks to Another WS6 Guy ...

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    Quote Originally Posted by Spaz View Post
    there is now a sticky thanks to Another WS6 Guy ...
    Thank you, thank you.

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