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  1. Mudsport96

    Mod planning

    Yes. They even use the same ypipe as the 8.1 liter trucks. The only difference is that the first foot or so is different because the LS is obviously narrower than the 8.1. Edit: the pipe size is the same just bent differently I should have specified better.
  2. Mudsport96

    Mod planning

    Factory intake test 549 hp Factory 706 heads good for 513 hp.
  3. Mudsport96

    Mod planning

    He is talking about the y pipe. Yes you can. Get a factory 2500 suburban or pickup exhaust. It is larger than the 5.3 exhaust and possibly what the LQ9 Yukons have ( i haven't been under that fancy of a rig since i left the dealership). It is dual pipes all the way to the muffler.
  4. Mudsport96

    Mod planning

    There fixed it for you Partially correct. Watch the Engine dyno video I posted previously. Shorties are worth at max 5 to 7 hp.... on a setup WITHOUT cats. The 3rd generation manifolds are so good they don't become a real restriction till close to 450hp. Truck intake manifold is good to almost...
  5. Mudsport96

    Mod planning

    Header dyno results on a 4.8 On an engine dyno with no accessories so numbers will seem high. Shorties are not worth the time or effort spent.. And even long tunes aren't worth it in my opinion ( for a stock cammed engine). Follow this guy's channel he has just about every test you can...
  6. Mudsport96

    My Hotrod Project

    That was found in the glove box of the Nova after it was bought and driven back to Illinois. I can't believe it got between 16 and 19 mpg( if I did the math right). Also, the cooper's that were new on the last page, did not survive the v8 swap. They were rock hard and would almost spin with the...
  7. Mudsport96

    My Hotrod Project

  8. Mudsport96

    Rear End swap help years compatability

    1996 4.3 2 years before gm started using TM. And that was just at the sunshell where the shaft gave up the ghost.
  9. Mudsport96

    Rear End swap help years compatability

    I wouldn't be beating on it for the sake of beating on it. I twisted the output shaft off of one. WITH A 4.3 in a blazer.Transgo kits do save a weak design, the only think saving a 4l60e from a 5.3 is the torque management.
  10. Mudsport96

    Rear End swap help years compatability

    Just put it in 3rd manually and use tow/haul mode until you can get a tune. But personally, I would only leave it in there until you can find another 3.42 or 3 73 to replace the 3.08. Once you speedo is recalibrate, ill bet you see a drop in mpg.
  11. Mudsport96

    Diagnostic help needed - SOLVED

    Round here speed limit is 65 or 70 on the big roads, and if you aren't doing 75 80 you are impeding traffic
  12. Mudsport96

    Diagnostic help needed - SOLVED

    Does it just do it at 80 in 4th gear? Or does it do it in 3rd as well?
  13. Mudsport96

    Pinging at WOT...

    Yes, the Z is the only clue on mine. Hell the fuel cap isn't even yellow like most flex vehicles. So if the average Joe had it and didn't know how to decipher the VIN, he would never know.
  14. Mudsport96

    Pinging at WOT...

    Possibly. My L59 Tahoe has no markings whatsoever that it is flex fuel
  15. Mudsport96

    Copy PCM to swap in a new one with Tech 2?

    I've used pcm Hammer a couple times. I usually use LSDROID with no issues at all
  16. Mudsport96

    Copy PCM to swap in a new one with Tech 2?

    This here is why I ONLY USE a bench harness for flashing. A slight glitch, miscommunication between bcm and pcm, or voltage fluctuation can nuke a pcm.
  17. Mudsport96

    Pinging at WOT...

    Possible that there may be excessive carbon build up in the engine as well. Causing the problem.
  18. Mudsport96

    Pinging at WOT...

    I get this occasionally in my 06 when it is above 95 outside and the AC is blasting.
  19. Mudsport96

    What did you do to your NBS GMT800 Tahoe/Yukon Today?

    Rear brakes. And run through the automatic wash. Not much but something
  20. Mudsport96

    Salvage yard trouble/Arm rests

    I don't know, I keep getting calls about an extended warranty even after telling them it is a 1995 with 330k miles.
  21. Mudsport96

    Dual Swing Out Rear Bumper

    While it is pretty and cool. I build one for a Cherokee a couple years ago out of 1/4" plate and 2" box 1/8" wall for less than 500 bucks and while it was only single swing for the spare.... it had built in D ring pull points
  22. Mudsport96

    Salvage yard trouble/Arm rests

    X2 With Alex's reply
  23. Mudsport96

    How to check PCV Valve?

    You could try to blow some air through it backwards into the valve cover. I would be very careful if choosing this action however.
  24. Mudsport96

    How to check PCV Valve?

    Starting in 2003ish GM phased out the old style pcv valves and went to a metered orifice style valve cover. No real easy way to "check" it. I just put a 2000 valve cover on both of my 06s and added oil catch cans. A quarter per oil change interval isn't horrible. How many miles are on the...
  25. Mudsport96

    Issues with 2nd gear

    Believe it or not it would hold fine under moderate tip-in. And just kick down to 3rd with any more throttle. This truck has always shifted odd. To the point that the very reputable shop that installed the new Trans kept it an extra day trying to troubleshoot a perceived issue that 3 different...
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