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Thread: Will flex fuel parts work on 2000 5.3?

  1. #1

    Will flex fuel parts work on 2000 5.3?

    Hi i'm new to the forum i searched an didn't come up with much on this and i need some help/advice. I have a 2000 z71 with a 5.3. I'm doing a rebuild an making some changes. I already have a comp thumper cam, .30 over hyper. pistons, Lt headers, and I was wondering if i could buy the flex fuel, injectors, rails, tb, an intake manifold off a 2011 5.3 on my 2000? And how much I would benefit from it.

    Thanks Brandon

  2. #2
    Join Date
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    Yes, need an Xlink for the TB.

    1969 Chevy RCLB C10 350/TH400 SOLD
    2007 Chevy RCSB 4.8 4x4 LS SOLD
    2008 Chevy RCSB 5.3 4x4 LT SOLD
    2010 Chevy CCSB 6.2 4x4 LT SOLD
    2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
    2013 FORD CCSB F350 6.7 Powerstroke 4x4


  3. #3
    Quote Originally Posted by pl4yboy View Post
    Yes, need an Xlink for the TB.
    Its a 2000, he has the cable TB so no need for the xlink although you would need a 90mm cable style TB.
    03' Silverado RCSB H/C 5.3, 4L80,76mm KBracing Kit
    13' Sierra Denali 2500HD CCSB 4x4

  4. #4
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    Quote Originally Posted by graysilverado5.3 View Post
    Its a 2000, he has the cable TB so no need for the xlink although you would need a 90mm cable style TB.
    Good looking out. I didn't even notice he said 2000.

    1969 Chevy RCLB C10 350/TH400 SOLD
    2007 Chevy RCSB 4.8 4x4 LS SOLD
    2008 Chevy RCSB 5.3 4x4 LT SOLD
    2010 Chevy CCSB 6.2 4x4 LT SOLD
    2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
    2013 FORD CCSB F350 6.7 Powerstroke 4x4


  5. #5
    Join Date
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    good luck with the hyper pistons... and like said before that TB wont work you will need to get a Drive by cable one, the edelbrocks are a decent price and a good piece
    74 Austin Morris Mini 1000 - Daily Coil Spring conversion, lowered, Disc Brake conversion
    FOR SALE: 04 RC/LB Duramax -12 second tow pig, built Allison, Tune, and supporting mods
    FOR SALE: 03 Silverado SS -DBRods built 40X, DP, Suspension. Going for fast

  6. #6
    Quote Originally Posted by 408.Luke View Post
    good luck with the hyper pistons... and like said before that TB wont work you will need to get a Drive by cable one, the edelbrocks are a decent price and a good piece
    Is there something wrong with Hypereutectic Pistons?
    -Ol Bessy-
    2000 Chevy Silverado 5.3 stepside 4x4
    k&n Intake
    PaceSetter Long tubes
    Tune
    Built 4L60e
    Detroit locker, moser axles

  7. #7
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    Quote Originally Posted by 5.3olbessyZ71 View Post
    Is there something wrong with Hypereutectic Pistons?
    yes, they dont like any kind of detonation, they wont hold nitrous if you ever want to go that route and you better have your tune spot on or it will be detrimental. had a friend that lost a motor in less than 20 miles from losing spark in a cylinder. IMO id sell them and get some forged and save the headache
    74 Austin Morris Mini 1000 - Daily Coil Spring conversion, lowered, Disc Brake conversion
    FOR SALE: 04 RC/LB Duramax -12 second tow pig, built Allison, Tune, and supporting mods
    FOR SALE: 03 Silverado SS -DBRods built 40X, DP, Suspension. Going for fast

  8. #8
    Thanks for the heads up on the pistons man. I will definately look into a set of forged pistons.

    One more question. So the injectors and fuel rails are a direct drop in? Just need a tune to run them? or will it just run rich in the meantime?

    I looked into the 90mm TB from Edelbrock. Looks like a good product, are there any other manufactuerers you would recommend for a 90mm cable TB?

    Also, what is the size of the stock 2000 5.3 throttle body?
    Last edited by 5.3olbessyZ71; 01-26-2012 at 10:16 PM.
    -Ol Bessy-
    2000 Chevy Silverado 5.3 stepside 4x4
    k&n Intake
    PaceSetter Long tubes
    Tune
    Built 4L60e
    Detroit locker, moser axles

  9. #9
    Join Date
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    Nick williams makes a really nice 90mm theres some other brands around like fast. For the injectors you may need to change injector pig tails someone else may want to chime in on that
    74 Austin Morris Mini 1000 - Daily Coil Spring conversion, lowered, Disc Brake conversion
    FOR SALE: 04 RC/LB Duramax -12 second tow pig, built Allison, Tune, and supporting mods
    FOR SALE: 03 Silverado SS -DBRods built 40X, DP, Suspension. Going for fast

  10. #10
    Quote Originally Posted by 408.Luke View Post
    Nick williams makes a really nice 90mm theres some other brands around like fast. For the injectors you may need to change injector pig tails someone else may want to chime in on that
    Thank you I will do some more looking around at TB's. Ill wait to hear from someone about the injectors. Thanks.
    -Ol Bessy-
    2000 Chevy Silverado 5.3 stepside 4x4
    k&n Intake
    PaceSetter Long tubes
    Tune
    Built 4L60e
    Detroit locker, moser axles

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