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  1. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    If you know a really good port guy I would get the heads ported and yes they are desirable because they are the ls2 heads. On a tight budget those heads are good on larger displacements for that reason. They won’t flow upstairs as much as rectangle port but mast makes a set of carherdeal heads...
  2. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    Use a larger compressed gasket size to lower it if you didn’t buy pushrods yet. No need to change the cam out then. Instead of using .040 use something like .080. Pm me the info you’re calculating. You are using the L94 cam?
  3. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    For the record I was considering 799 heads on a 6.2 to raise the compression for an N/A build and a cam and my static was 11.5 by dynamic was 6 and was safe to run pump gas. Change your cam if you don’t have enough bleed off. mistake it was 8.7 and was safe enough for pump gas.
  4. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    What is the the dynamic compression ratio? Too high is not an answer
  5. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    Does anyone know a website that has the cfm of many if not all factory radiator fan assemblies?
  6. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    What is your dynamic?
  7. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    Those are what’s on the gen4 5.3
  8. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    This must be related to COVID because they were never made to order. I was able to get many different ones at any given time from cometic. Summit had them in stock. Hard to get raw materials now so this might be why made to order.
  9. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    Petcock is a valve. Most radiators don’t have that anymore it’s a plastic plug with an oring.
  10. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    I always wanted a RCSB. They are nice looking. Definitely put a 6.2 or lsa swap that
  11. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    Just gotta keep em separated since he’s pretty good for an old guy.
  12. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    Anyone else hear the offspring playing while reading this post?
  13. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    I have the option to deltree posts as well. Supporting member options.
  14. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    Put the cover back on where the blower motor is. looking to buy a Tahoe with a 6.2 with low mileage. Seems like I might have better luck with an Escalade instead. Every Tahoe I find from 09-12 is a 5.3. Wife is sick of her car and wants to trade it in for something but I don’t want DI.
  15. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    Hyper tech doesn’t care and all their other customers who use their tuners like livernois motor sports. They won’t reset shit without getting paid. This is why I hate those tuners. It’s also locked because they don’t just load new Calibrations they load an entire OS and that’s why it takes so...
  16. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    Because I don’t care. I need to last just this season. I’ll replace the whole system next year if I have to makes no difference.
  17. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    Recharged my ac with stop leak. Hopefully it fixes it for now. Cleaned the areas that I thought were leaks. Hoping for the best. 1000 grams it took to get front and rear cold.
  18. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    I had to use a plastic brush to clean it off in addition to some foaming cleaner. Was horrible. also need to charge up the ac a bit. Took 18oz and still warm in the back. I have a feeling I’ll be changing some items out.
  19. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    I put the cabin filter kit in today. Man was that evaporator filthy.
  20. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    You should’ve seen the scaling I had on my NBS. Frame was still solid. If it didn’t catch fire i would still be driving it. Rust is inevitable in the north and NE. I got plenty on my nnbs but everything still solid. The body has a hole in the hood from rust. I just put some touch up on it and...
  21. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    He meant changing distribution facilities from before payment to after payment.
  22. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    LOL you might be onto something!
  23. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    I’ll do that if it stops working
  24. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    Doing that now. Seems like it’s working for now. Issue I was having it would go to face on start then 5 mins later it would be on windshield but auto is off and it’s on face only with recirculate and aux.
  25. 08z71bgm

    What did you do to your NNBS GMT900 Tahoe/Yukon Today?

    I’ll give that a shot. What else would fix it? I guess blend door actuator replacement. What is the one everyone seems to replace it with?

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