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Thread: lq4 swap into a 1991 obs

  1. #1
    Join Date
    Jan 2008
    Location
    Victoria, TX
    Posts
    326

    lq4 swap into a 1991 obs

    really wanting to drop a fresh motor in my 01 and take this one out, to a lil spiff up on it and drop it in my 91 4x4. Only question I have is will it be a problem with the 91 having a th350?

    I dont think it would, and might be a stupid question but just thought this might be the place for the answer so i could get it out of my head


    2011 4x4 6.2 Silverado ltz 6" fabtech lift 20" XD spy 35" nitto mud grappler

  2. #2
    Join Date
    Jan 2008
    Posts
    8,031
    no problem at all.it will bolt right up.

  3. #3
    Join Date
    Nov 2005
    Location
    Southwest Texas
    Posts
    202
    Yeah, everything will be cool, just make sure you get a LS1 style TH350 converter or get the pilot bearing spacer. I'm running a TH350 behind my LQ4. At first I had the pilot bearing spacer with a regular TH350 converter(needed to be milled slightly), but I ended up just buying a new LS1 style converter and got rid of the spacer. Good luck with your swap bro.

    1982 Silverado - just an old truck motor I had sitting around the house.

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