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  1. #1
    Junior Member 98_Ws6_scooter's Avatar
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    Sep 2007
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    Southwest Va
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    52

    Red
    1998 Trans am A4 Ws7

    head numbers ... confused

    the 99 ls1 is ---9908918252229855--- and ---853---

    98 ls1 has a date ---3/22/97--- and a ---306--- number above it and this is located above the first cylinder from the front of the car on the driver side


    lil help guys thanks...

    how do i know what these heads are and they might be stock.....

  2. #2
    Senior Member mrr23's Avatar
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    Jul 2005
    Location
    orlando, fl
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    7,364

    black
    2014 camaro 2ss/rs

    853 heads came on the 99-00 f-bodies

    306 heads came on 97-98 corvettes and f-bodies.
    Cold Air Intake, Muffler Delete, Vinci High Performance Dual Valve Springs, Hardened Pushrods, Yella Terra 1.85 Rockers, Some Hydropdipped Stuff, Strut Tower Brace, Some SS Badges, boost/vacuum gauge, fuel pressure gauge, some checkered stripes, drilled/slotted rotors, ZL1addons Stealth wickerbill, Ruxifey LED side markers

  3. #3
    Junior Member 98_Ws6_scooter's Avatar
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    Sep 2007
    Location
    Southwest Va
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    Red
    1998 Trans am A4 Ws7

    ok thanks

  4. #4
    Impounded
    Join Date
    Mar 2007
    Location
    Milwaukee
    Age
    36
    Posts
    2,154

    Red
    2000 Trans Am

    Mines a 2000 and i got 241 casting, im assuming because it was made in August

  5. #5
    Senior Member mrr23's Avatar
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    Jul 2005
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    black
    2014 camaro 2ss/rs

    if it's 8/2000, it's supposed to be a 2001. look at the emissions sticker under the hood for the correct year.

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