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  1. Bextreme04

    8.1 Vortec VS 383 Stroker VS 6.0 Iron LS

    No. Testing conclusion is that you will make more absolute power with a carb properly tuned for the exact circumstances being tested. Efficiency is not even close. The EFI will beat out the carb hands down for efficiency in every situation. You don't go for EFI with the intention of more...
  2. Bextreme04

    Opinions on grounds needed

    Yes, and because the amperage is pretty low, they don't need much connection to the bed or core support to be totally fine. All turn signal and headlight issues I've had on two different squares were able to be tracked down to the way the ground wire itself was connected into the socket. The...
  3. Bextreme04

    Opinions on grounds needed

    Most light harness related ground issues are caused by the socket internally having an issue to the ground cable in my experience. Adding ground connections from body panels to the frame can be helpful, but it is usually due to the socket itself not having a decent ground.
  4. Bextreme04

    A couple more sensor questions

    I've seen lots of people use that port only because they are always jumping on the transmission forums to ask why their temps read so weird. If you use that port for the trans sensor you will only read what the case temp is, there is no fluid flow in that area, so the fluid at that port is...
  5. Bextreme04

    High Flow cats on a Blueprint 383

    I agree you won't hurt anything by putting on high flow cats. I just put a pair of 3" stainless flowmasters on with a set of long tubes to replace some worn out ones on my 2011 Suburban. It immediately jumped my fuel trims up 20%, so they definitely aren't taking anything away flow wise. I still...
  6. Bextreme04

    A couple more sensor questions

    Do not use that port for a transmission temp gauge. It is for testing line pressure and is a dead head. You will get completely false temp reading from that port. You should put a sensor into the pan or in the cooler line. There are several kits out there with weld in or screw in bungs for the...
  7. Bextreme04

    Fusible Link?

    If it is only the headlight switch... it isn't a fusible link problem. Did you check the headlight fuse in the fuse box?
  8. Bextreme04

    Power steering fluid .. what type ?

    Lots of high performance 4l80 builders recommend the Hy Gard fluid for their $5000 race transmissions... just make sure it is the low viscosity variant... regular Hy Gard is ~30 weight oil equivalent and will put a hell of a load on the pump. Low Viscosity is ~10 weight and very similar to ATF...
  9. Bextreme04

    Trailering your square body

    They just have no idea what they are doing usually, and have to deal with a lot of people that also have no idea what they are doing.
  10. Bextreme04

    Trailering your square body

    He posted a shot of his hitch that is only rated for a 7500lb trailer weight without weight distribution.
  11. Bextreme04

    Trailering your square body

    There is no way those trucks are going to be 4k. The beds aren't the heavy part for sure. My truck is SRW too, a 3500 is going to be even heavier. Are either of them 454's? Do they actually weight the vehicle where you have them registered? I've never actually had a vehicle that shows a weight...
  12. Bextreme04

    Gas smell

    I'm not sure what you are trying to say here. I have not had any fail from them. It's a genuine Delphi. I've had a more expensive Carter pump fail and it had no warranty. So I was out the time and effort to go recover the vehicle, plus the time to replace it, plus the cost of the new pump...
  13. Bextreme04

    Trailering your square body

    If those are 3/4 or 1-ton trucks, they are likely well over 4k. My 1980 K25 8600GVW pickup weighs in at ~5400lbs on the scale. That's with a 350/TH400/NP205 and 14BFF rear with the big 13" brakes. When it broke down out in the woods hunting a few years ago I took a friends ~20ft car trailer with...
  14. Bextreme04

    Gas smell

    I have ran two different delphi pumps from autozone on two different motors and have had zero failures. I rebuilt a 350 and ran a new Carter pump on it that failed after ~500 miles while I was out in the middle of the woods hunting. The internal pump arm end had just sheared off. Replaced it...
  15. Bextreme04

    Repopped Fender Badges-where to buy quality badges?

    Unfortunately no one seems to make the GMC stuff for 73-80. I ended up having to keep an eye out for original Sierra Classic 25 badges that werent completely destroyed and then stripped them and found OEM matching paint to restore them myself. They will go on when I get around to putting on the...
  16. Bextreme04

    8.1 Vortec VS 383 Stroker VS 6.0 Iron LS

    Yep. Thats what is going in mine... hopefully soon(I know I keep saying that). I bought a running/driving 1997 K2500 Suburban for $500 and gutted it. I sold ~$1000 worth of parts off it, took what I needed for the swap into my truck, then sent the rest to scrap. I rebuilt the engine and trans...
  17. Bextreme04

    8.1 Vortec VS 383 Stroker VS 6.0 Iron LS

    If you are going to be towing with this setup, then you want either the Gen VI or Gen VII BBC. You can get them with the wiring harness, computer, and engine/trans setup out of any 96-04 3/4 ton and up Truck/SUV. Exhaust and some of the internals will be the same between the 7.4 and 8.1...
  18. Bextreme04

    What have you done to your square lately??

    Well, glad you aren't selling it.. also sad you aren't selling it... to me! Enjoy the swap meet!
  19. Bextreme04

    Transmission Upgrade?

    That would probably be the way I'd go if it was me and the trans was going behind a non-efi engine. You can get the 0411 computer and pigtails, run the TPS and engine RPM inputs to get proper shifting(you can also connect a 4lo switch to get proper shifting when in 4wd without having a VSS...
  20. Bextreme04

    Electric Fan Temps

    Factory dual fans on the newer Suburbans/Silverados have a low/high speed that is controlled using a three relay system. Fan 1, Fan 2, and Fan Control. The PCM controls that with two ground signals, one for Fan lo and one for Fan hi. AC pressures or coolant temps will trigger the low speed which...
  21. Bextreme04

    Electric Fan Temps

    F-body three wire sensor and wire it right to the PCM. Shouldn't be too big of a deal to run them along the current harness. I got the sensor, stock connector, and wire run all the way to the red/blue connector from a V6 99 F-body in my local junkyard for like $5. If your tuner is using HP...
  22. Bextreme04

    What have you done to your square lately??

    You might want to check out the 02-06 pickup truck 40/20/40 seats or the front buckets from the same year truck/SUV's that had a console. The only difference between them is whether they have the inside flip down arm rest. The buckets that came in the ones with a console don't have the flip down...
  23. Bextreme04

    What have you done to your square lately??

    Hopefully you mean taking the truck to the swap meet to haul all the goodies you are going to buy back with you?!?! Not selling the canopy at the swap meet.. right? If you ever end up wanting to sell the canopy let me know, I'll drive the K25 down same day and take it off your hands!
  24. Bextreme04

    Transmission Upgrade?

    Yep. The lockup is honestly going to be the biggest difference in my mind. The OD gear will make a huge difference on highway driving and will let you cruise much more comfortably for long distances at freeway speeds, but the lockup converter will see efficiency improvements everywhere. The...
  25. Bextreme04

    Transmission Upgrade?

    Should be good for a few MPG... especially on the freeway. The combination of getting the RPM down and locking the converter up should make a huge difference. Most of the guys running the Gen V and Gen VI 454/4L80 combos report somewhere between 12-14mpg, but I don't have any real world...

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