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Thread: My 1999 OBS C1500 LQ9 6.0 LS Swap

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  1. #1
    Quote Originally Posted by ChevyMan90 View Post
    I do plan on putting A/C back in the truck. I will have to buy a bracket to mount the compressor. The wiring harness I am using has an A/C signal wire that I will have to use in order for it to all work. Here is a picture of how the headers fit. I'll have to get another for the oil pan.

    That looks like plenty of room... I plan on body dropping my truck after I finish another car I'm working on and long tubes that stay above the front frame rails are hard to find.

  2. #2
    Well the wiring is finally cleaned up and loomed. I think it came out pretty good. The only gauge not working is my fuel gauge. I did a bunch of searching and repinned the LS PCM with the 2 necessary wires from the factory black box computer and it still isn't working. I had adjustments made in the tune and still have had no luck. If any of you have any tips for me let me know! Just wanted to share a few engine bay pics. Still have a few little things here and there I want to fix up but its 99% done. It sure is fun!





    1999 Chevrolet C1500 2WD
    LQ9 6.0 . PRC LS6 Heads . TR 227/239 Cam . TBSS Intake . LT Headers . 3.73 . TruTrac . E-Fans . Built 4L60E . PI 4000 Stall

  3. #3
    Join Date
    May 2007
    Location
    Oak Forest, Illinois
    Posts
    276
    There are no tips for the fuel gauge. It has to be corrected in the calibration.

    Jeff
    98 GMC RCSB 2wd, 100% internally stock 305, w/twin T-3 junkyard turbos,Ramjet intake w/42lb inj,12200411 PCM. 4675lbs w/me in it. Best time in 5 passes 13.01@110

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