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  1. 10-29-2007, 03:26 PM #1
    98_Ws6_scooter
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    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.....
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  2. 10-29-2007, 07:05 PM #2
    mrr23
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    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
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  3. 10-29-2007, 07:28 PM #3
    98_Ws6_scooter
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    Red
    1998 Trans am A4 Ws7

    ok thanks
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  4. 10-30-2007, 02:46 PM #4
    2000T/A Guru
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    Red
    2000 Trans Am

    Mines a 2000 and i got 241 casting, im assuming because it was made in August
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  5. 10-30-2007, 05:06 PM #5
    mrr23
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    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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