NNBS intake on 03+

Discussion in 'Performance' started by 2005_Silverado, Dec 13, 2013.

  1. blome_racing

    blome_racing blo me

    Messages:
    1,871
    Tbss gaskets work just fine and you can reuse your bolts Wes
     
  2. Gannon

    Gannon That Guy

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    4,723
    :shake:

    In that case I'm good to go, just ordered the rest of the parts this morning.


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  3. Fiesty

    Fiesty Active Member

    Messages:
    2,699
    so would I be safe re-using my felpro intake gaskets which have maybe 600 miles on them?
     
  4. Adjusted

    Adjusted Super Moderator

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    3,623
  5. CammedVmax

    CammedVmax Still stuck

    Messages:
    5,043
    Could I just do one of those 4 bolt to three bolt adapter plates and run my stock throttle body for now?


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  6. Gannon

    Gannon That Guy

    Messages:
    4,723
    That's what I'm going to do for now. Low01silverado did and said it runs just fine.

    [​IMG]


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  7. CammedVmax

    CammedVmax Still stuck

    Messages:
    5,043
    So all I need is an adapter plate? No wiring till I do new TB? My buddy has one and might just throw it on while it's apart


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  8. CammedVmax

    CammedVmax Still stuck

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    5,043
    I already have the flex fuel injectors and pigtails


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  9. Gannon

    Gannon That Guy

    Messages:
    4,723
    Should bolt up no problem since you have DBC. All I have to to do now is make a bracket for for mine since it's DBW.


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  10. CammedVmax

    CammedVmax Still stuck

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    5,043
    I have dbw man! Mine is an 07 classic lol.


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  11. Peyton676

    Peyton676 New Member

    Messages:
    1,588
    78mm tb is not the restriction,the stock truck intake is

    Got a few locals running 3 to 4bolt adapters including Bryan 01whatevrr lol

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  12. CammedVmax

    CammedVmax Still stuck

    Messages:
    5,043
    Good to know. Might just make my own adapter plate.. I'm sure I can get some 1/4 aluminum somewhere around here or something.


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  13. Gannon

    Gannon That Guy

    Messages:
    4,723
    My bad, always get those mixed up


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  14. Gannon

    Gannon That Guy

    Messages:
    4,723
    It was only like $40 at summit


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  15. Low01silveradO

    Low01silveradO New Member

    Messages:
    498
    Lol yes I'm running the adapter. Did the calculations and 78mm TB flows more cfm than even a 6.0 can pull N/A. Bigger isn't always better.

    If FI or over 400 cubic inches, then 90mm+ makes a big difference.

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  16. slicksierra

    slicksierra Feel some type of way

    Messages:
    5,535
    Bumpin this so for 99-02 you need the complete NNBS intake with rails and injectors, gaskets, throttle body adapter, injector adaptors and the corvette filter. Am I missing anything? Do you need to do any severe modification like welding? I can handle cutting and bolting on
     
  17. j.mo

    j.mo Well-Known Member

    Messages:
    6,876
    If you get the new rails, you won't need to cut/modify anything. If you re use your current rails, you will need cut extend them like Bgerald did. The nnbs intake is taller
     
  18. slicksierra

    slicksierra Feel some type of way

    Messages:
    5,535
    Word. Only question is can you use stock injectors on nnbs rails?


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  19. j.mo

    j.mo Well-Known Member

    Messages:
    6,876
    You can.
    But if you want to use the nnbs injectors, you need the pigtail adapters.
     
  20. Samuel6731

    Samuel6731 Cant Get Right

    Messages:
    673
    Did mine like this along with heads and cam, was super easy.
    I used the NNBS rails with Marine injectors
    3-4 bolt adapter plate
    Drive pcv goes on top in the middle of the intake mani
    Evap shit i ripped off dont need dat
    passenger PCV i drilled and tapped my CAI and threaded in a heater hose fitting then connected it to there as it is on a NNBS stock setup.

    BTW you do not need fittings to by pass the TB coolant, remove the hose (drive side) that comes from tb and goes to block its about 5'' long, and take the (passenger side) hose that comes from the radiator and goes to TB just hook that straight up the block where you removed the first hose its plenty long enough.
     
    Last edited: Mar 3, 2014

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