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casting #'s for different year ls1-6 stuff

This is a discussion on casting #'s for different year ls1-6 stuff within the General Help forums, part of the LSx Technical Help Section category; Dose anyone know where i can get a listing with all the different casting #'S for the different year blocks, ...

  1. #1
    Member 99transamC/FIA's Avatar
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    casting #'s for different year ls1-6 stuff

    Dose anyone know where i can get a listing with all the different casting #'S for the different year blocks, heads,and intake.
    I'm a class racer and classification of the car depends on casting #'s. currently running a 99 trans am but considering move to 2002 depending on HP improvment.
    I thought i saw a complete listing on here but cant seem to find it.
    Any help would be great
    Thanks
    Dave

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    Member kev70ss's Avatar
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    not sure on the blocks but this has a lot of info
    http://www.smokemup.com/tech/ls1.php

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    Member 99transamC/FIA's Avatar
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    Thaks alot
    not really what i'm looking for but it is still good to have.
    I need a casting # List
    which head is the best? 243?

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    Veteran 0rion's Avatar
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    you can look at will handzel's book ( amazon has it) as it has quite a few of the casting numbers listed in it. The intakes used a crap load of different casting numbers. I had them at one time and thought I posted them here somewhere. There's quite a few of them. 243's are LS6 heads and are considered the best stock heads.

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