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  1. #1
    Jr. Apprentice
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    Mar 2011
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    Tularosa, New Mexico
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    Default Gen VI 454 ignition timing after overhaul

    I'm in the middle of overhauling a 1996 gen VI 454 and I'm trying to figure the best way to set the ignition timing: Should I set it to #1 TDC on compression, stab the motor in, and then set the intake and distributer before rotating the motor; install the intake and distributer and set timing on the engine stand and then stab the motor; or something I haven't thought of. It doesn't look like there is much room for error as far as setting the timing.
    Life is too short to drink cheap beer.

  2. #2

    Default

    ignition timing, i would say yes..TDC and then there is a mark on the distributer...close to the #1 wire pickup..thats where the finger should point ..!
    IMO, atleast on the 350s its that way and i do believe on the 454 as well !

    1996 Suburban K3500 SLT DUALLY
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  3. #3
    Jr. Apprentice
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    Mar 2011
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    Default

    Thanks, DAREDEVIL.

  4. #4
    Jr. Apprentice
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    Mar 2011
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    Tularosa, New Mexico
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    Default

    Just my luck - I had it 180 out.

  5. #5

    Default

    You may already know this, but make sure that the Timing connector to the PCM is disconnected before you advance and set the timing.
    Pavement sucks... :grrrrrr:



    1994 K1500 4x4 Ext. Cab
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  6. #6
    Jr. Apprentice
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    Mar 2011
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    Tularosa, New Mexico
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    Default

    Let's say that I didn't know about disconnecting the timing to PCM connector - Which one is it?

  7. #7
    Master Mechanic clgoch187's Avatar
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    Aug 2010
    Location
    Gettysburg, Pennsylvania, United States
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    900

    Default

    single wire plug on the fire wall about /2 way to center from the drivers side
    03 Silverado 1500
    285/75/16 BFG's
    2 Blaupunkt 10" vW1000 subs in Subthump box
    ProComp Level Lift & 3" rear blocks

  8. #8
    Jr. Apprentice
    Join Date
    Mar 2011
    Location
    Tularosa, New Mexico
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    Default

    Thanks guys.

  9. #9

    Default

    on a vortec u dont have to disconect it at all, u cant set the timing it will only work in 1 position.
    Last edited by DAREDEVIL; 03-31-2011 at 11:54 PM.

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