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  1. 02-17-2009, 08:47 PM #1
    JollyGreenGiant
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    Default 04 Silverado Performance

    What can i do to a 5.3L? Also how hard is it to drop a 8.1L in it?

    Jolly Green Giant
    2004 Silverado Z71
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  2. 02-17-2009, 09:50 PM #2
    TRPLXL2
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    Here is a list of performance upgrades that you can do or have done, that is beyond the normal exhaust, intake, chip, programmer. The only thing I have experience with on this list is the throttle body, and the 300 amp alternator both of which I currently have on my truck. The throttle body is a nice upgrade although it requires additional tuning, and the alternator is a must have for off-road lights or big stereos. Enjoy!!
    http://www.gmtruckclub.com/forum/att...1&d=1234925395
    Last edited by TRPLXL2; 02-22-2009 at 11:11 PM.
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  3. 02-17-2009, 10:56 PM #3
    TRPLXL2
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    Here's a picture of the 5.3 full potential, minus a turbo or supercharger!
    http://www.gmtruckclub.com/forum/att...1&d=1234929409
    Last edited by TRPLXL2; 02-22-2009 at 11:11 PM.
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  4. 02-18-2009, 03:50 PM #4
    silveradotrailblazer
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    Post 04 silverado performance

    Ive bee told 8.1 wont match tranny, plus electronics. A 6.0 (LQ9) bolts right in. Diablo Sport will make programmer to tune the trucks computer. Takes about a day to change.
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  5. 02-18-2009, 09:47 PM #5
    JollyGreenGiant
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    Default

    thanks for the help guys, kind of a disappointment that the 8.1 wont drop in :(

    Jolly Green Giant
    2004 Silverado Z71
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