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Thread: 4l80e conversion

  1. #1
    Join Date
    Aug 2005
    Location
    St. Anthony, Indiana
    Posts
    1,592
    I,m gonna do the 4l80e conversion. Where is a good place to get a built 4l80e?




    I want to run 10 pounds of boost.
    Is there a built 4l60e that will hold up to this in my heavy ass truck?


    Option 2:
    http://www.finishlinetrans.com/transmissio...L65E-Level5.htm

    what do you think?

  2. #2
    Join Date
    Feb 2005
    Location
    Austin, Texas
    Posts
    2,053
    speed engineering ahs the conversion kit for the 80e. I would do a shift kit and clutches and call it good the 80e is very tough stock. No with your mods in my opinion no 60e will last.
    2007 CCSB Z71 VortecMax: Stock!

  3. #3
    Join Date
    Jan 2006
    Location
    Orange County, CA
    Posts
    13
    A shift kit on an 80 with good clutches will be fine. Your t-case and front diff will be next to go. Speed engineering is good for the harness, but for a crossmember, go get one from a 2500hd 4wd. Mine bolted right up to the frame with just 4 new holes.
    2003 GMC RC SB LQ4 4L80E RADIX 2.8 pulley 8psi 472RWHP/495RWTQ (w/OEM throttle body) 91 octane no NOS no CH3OH lingenfelter GT-7 cam 1.65/2.02 rev valves w/comp 918 springs and pushrods one off 9.2 CP pistons and manley rods JBA titanium shorties magnaflow 3" catback 90mm LS2 throttle body conversion volant CAI w/ram air 4.10 eaton posi SSBC 14" front brakes w/4 pot calipers one off intro 20x8.5 20x10 "bean 6 covered" w/graphite powdercoat covered in 265/50 and 295/45 KDW2 rubber hotchkis front and rear bars beltech 4" rear w/c notch and caltracs eibach 2" fronts edelbrock AIS shocks suede/leather/ostrich denali interior w/bucket seats painted power fold signal mirrors all chrome powdercoated black and shaved tailgate black speed grilles snugtop UPCOMING: ASM LTs w/ 2.5" dual magnaflow, new tune (w/dyno), slicks...

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