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  1. consti2tion

    6.0 swap

    If your 6.0 has a return line on the fuel rail it's easy enough to just run a new feed line from the tank and use the original(carburetor) feed line for your return back to the tank. You can use the 87 TBI saddle tanks, they are baffled. I haven't messed with the dual tank stuff so I can't help...
  2. consti2tion

    TBI to Terminator throttle cable

    I used the factory throttle cable on my 86 C20 Suburban with a 454 when I had the Holley Sniper on it. Should be fine for the Terminator as well. (I've since swapped it to a 6.0/4L80E, 454 and Sniper going into my 72 C10.)
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    Rebuilding Front Suspension

    They own the rights to the lowers for C10's, but the C20 and C30 LCA's are abundantly made by multiple sources. @ByrdDog how does the quality of the control arms seem? You know how reviews go so it would be nice to get a first hand enthusiast's opinion on them. Putting together the parts to...
  4. consti2tion

    Fuel tank to Gauge wiring

    These were for a 1981. The color on my 1986 was a pink wire. But there are multiple pink wires on the on the cluster, pink with a black stripe I believe was 12v to the instrument cluster.
  5. consti2tion

    Fuel tank to Gauge wiring

    Found these on another forum. Looks like you're looking for a Tan wire with a White stripe. The harness comes out of the bulkhead connector and runs down the drivers side frame rail with your tail light harness.
  6. consti2tion

    About to ruin one of the nicest C3500's with an Ls.. Pictures

    It is satisfying doing your exhaust system! I did it on both of mine and it was a beating without a lift but rewarding when you hear it.
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    About to ruin one of the nicest C3500's with an Ls.. Pictures

    I used a combo of the stock AC lines from the Square and the stock lines from the donor (2001 Suburban 2500) on my 86 Suburban, I also used the stock LS low mount compressor. I had hoses made up by coldhose.com for my aunt's 86 C10 LS swap. Coldhose sells adapters for the Denso compressors so...
  8. consti2tion

    A/C Compressor Wiring

    That distribution block needs 12v going to it. When you move the climate control to any of the AC settings it should energize a green wire going to the low pressure cut off switch on the accumulator. Just to test and see if you get 12v out of one of the green wires in your second picture you can...
  9. consti2tion

    Adding AC after ls swap

    I've done 2 LS swaps now, one on an 86 C10 and the other on my 86 C20 Suburban. On the C10 I used a new factory Denso/GM compressor https://a.co/d/aTxtnen part number 15-21177, on the suburban I used the GM Genuine Parts 15-21127 which is a larger capacity compressor from a 2001 Suburban. Now...
  10. consti2tion

    Rear AC Blower Motor/Fan

    Good to know that AutoZone actually had a rear blower motor in stock! It's amazing how fast you get taking the rear ac apart when you've done it a few times. Causes neck pain after awhile :Stupid Me:
  11. consti2tion

    Questions about aftermarket kits

    Seeing that you're in DFW, you might contact Old Air Products, they're "local" to us in DFW, being in Fort Worth. The employees I met at Good Guy's seemed like nice enough people. I don't have any experience with their products. How did the PO do the install? Did they use factory parts or...
  12. consti2tion

    Suburban Rear AC not circulating refrigerant

    Such a complicated system for such a simple function. Please report back and let us know what you figure out. Thank you!
  13. consti2tion

    83 suburban ac hoses

    https://www.stockwiseauto.com/acdelco-15-33072-auxiliary-a-c-evaporator-inlet-hose?Year=1986&Make=Chevrolet&Model=K10%20Suburban This should be the factory Y line. Believe it or not I picked it up from the Chevy dealership near me.
  14. consti2tion

    Suburban Rear AC not circulating refrigerant

    Could you put the probe into a bowl of ice water to test it if that is how it functions?
  15. consti2tion

    Suburban Rear AC not circulating refrigerant

    A hair dryer may not be able to create enough heat, do you have a heat gun? It should read the pressure from the thermal bulb/probe if you can pull it out of the evaporator and test it that way. I have the same issues on mine, well I did before I tore it apart to LS swap it. I will have to...
  16. consti2tion

    Holley Sniper and Gas Tank Swap

    Sorry I haven't gotten a chance to snap a picture. The hose from the breather for the filler that goes to the tank on mine was a 5/8" hose. That should be more than enough fall to achieve a proper fill.
  17. consti2tion

    Holley Sniper and Gas Tank Swap

    @chuckler3 I'll try to get some measurements of how high the filler is on the Suburban from the factory, there isn't a ton of fall from the filler to the tank though so you should be fine as long as you have it vented properly.
  18. consti2tion

    Holley Sniper and Gas Tank Swap

    I have read mixed reviews on the integrated filter/regulator too but I think it's dependent on which filter people get. The Wix filter is supposed to function great, so that's the one I went with. If it ends up being a crapshoot I'll just put a return line on it back to the tank. As far as the...
  19. consti2tion

    Holley Sniper and Gas Tank Swap

    I spent a lot of time trying to get the wire looms to look clean under the hood, a lot of moving components around etc. The hyperspark added a some more frustration on the wire routing and placement though so it shouldn't be as bad for you. I considered just buying the fuel lines from...
  20. consti2tion

    Holley Sniper and Gas Tank Swap

    Yes you definitely need a relay, not sure why they don't just include that along with the fuel pump relay. I dropped the tank on the suburban yesterday, need to get new filler neck rubber hose and get the lines sorted. I decided to run a Corvette fuel filter/regulator. Are you running a return...
  21. consti2tion

    Holley Sniper and Gas Tank Swap

    I am taking my time doing this as well. Making sure I like where I am routing all wiring related to the Sniper and Hyperspark. It's tedious trying to do it right but I don't want it to be a mess to fool with in the future. I should have replaced the intake manifold while I was at it but I can't...
  22. consti2tion

    Holley Sniper and Gas Tank Swap

    I've got all my pieces and parts together to put a Sniper and the hyperspark on my Suburban, will be tackling it this weekend. I bought an EFI tank and am using the factory sending unit with an AEM fuel pump, using the stainless braided PTFE fuel lines where any flex hose would be.
  23. consti2tion

    Holley Sniper and Gas Tank Swap

    What size SS hardline did you end up going with?
  24. consti2tion

    Qjet to FITech 3003, couple questions

    That's also a good point here. If I could find a good enough deal on an L29 with harness it would potentially cost less than a Sniper kit and the trans controller. I would then have a good 454 to build on for my 1970 Nova roller. I will really have to look into this. I didn't realize that they...
  25. consti2tion

    Qjet to FITech 3003, couple questions

    The shift controller I am going to go with is the US Shift Quick 2(Baumann), they offer a splitter/filter for an extra 75 dollars. I have found a guy that sells the add on TPS for about 140 dollars here. https://eficarb.com/products/additional-throttle-position-sensor-for-popular-efi I figured...

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