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Thread: 4l80e in OBS

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  1. #1
    Join Date
    Oct 2009
    Location
    Rio Grande City TX.
    Posts
    220
    i'm doing it to my truck it steals like 20% HP if i'm correct but it will last longer then the 4l60e
    2004 Silverado:THELSX L.M.E LSX 454 C.I tuned by Llavero 11.1 N/A @121 MPH
    2004 Sierra:GUNSLINGER L.M.E LSX 427C.I,Twin Borg Warner/Forced Induction 76mm, th400, Ford 9" with ladder bar

  2. #2
    Join Date
    Nov 2009
    Location
    Fort Smith, Arkansas
    Posts
    496
    Quote Originally Posted by Rene_lsx View Post
    i'm doing it to my truck it steals like 20% HP if i'm correct...
    Ya, I've heard that but I'm arguing with my wallet and tryin to have the "do it right the first time" attitude.

  3. #3
    Join Date
    Oct 2009
    Location
    Rio Grande City TX.
    Posts
    220
    Quote Originally Posted by flattopwill View Post
    Ya, I've heard that but I'm arguing with my wallet and tryin to have the "do it right the first time" attitude.
    your on the right track then bro....... dont worry my project already has a year and a 1/2 since I started.
    2004 Silverado:THELSX L.M.E LSX 454 C.I tuned by Llavero 11.1 N/A @121 MPH
    2004 Sierra:GUNSLINGER L.M.E LSX 427C.I,Twin Borg Warner/Forced Induction 76mm, th400, Ford 9" with ladder bar

  4. #4
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    just do it, definitely worth it. I did it to my 93 and DBRODs did it to his 95? Its a simple install and well worth the effort. Reuse the stock xmember, rewire the trans electrical connector, add the ISS to the PCM and get a tune overlay added to the PCM.

    I had to saw part of the ears of the 80e transmission to clear my headers but other than that it was a straight fwd swap with the right parts.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

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