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Thread: T-56 to 6.0

  1. #1
    Join Date
    Nov 2005
    Posts
    1

    Unhappy

    corvettes and f-bodys with 5.7 ls1's come with t-56's but i'm looking for more cubes. does the 6.0 come with a t-56 or would i have to buy them serperately.


    If not what are the issues i'd run into with using a truck engine and a corvette trans. I know they'll bolt up but PCM and sensor wise i'm not sure.

  2. #2
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    You can get an LS2 6.0L with the T56 from a GTO. The corvette from 97 up uses a rear mounted transaxle type transmission. You'd have to get one from an earlier Corvette. If you did that and got a 99-2000 LQ4 it should bolt together without issue due to the longer crankshaft. A newer 6.0L is going to require a Camaro or GTO type T56.

    You'll also want to move the shifter up closer to the front of the transmission if you do the T56. I think Keisler does the mod or will sell you the parts to do it yourself.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  3. #3
    Join Date
    Nov 2005
    Posts
    30
    Hey man I am going to be using my 5 speed this my 6.0l swap but I now that wont last long. I was wornding if you know if the trans crossmember needs to be moved back and do you know how big of a drive shaft needs to be made or dose someone make one?
    I think a 6.0l and t56 would be freckin sweet.

  4. #4
    Join Date
    Mar 2003
    Location
    San Marcos Texas
    Posts
    4,393
    <div class='quotetop'>QUOTE(RedHeartbeat &#064; Apr 7 2006, 03&#58;05 PM) [snapback]49571[/snapback]</div>
    You can get an LS2 6.0L with the T56 from a GTO. The corvette from 97 up uses a rear mounted transaxle type transmission. You&#39;d have to get one from an earlier Corvette. If you did that and got a 99-2000 LQ4 it should bolt together without issue due to the longer crankshaft. A newer 6.0L is going to require a Camaro or GTO type T56.

    You&#39;ll also want to move the shifter up closer to the front of the transmission if you do the T56. I think Keisler does the mod or will sell you the parts to do it yourself.
    [/b]
    This would be my first choice&#33;

    <div class='quotetop'>QUOTE(markd &#064; Apr 7 2006, 03&#58;29 PM) [snapback]49572[/snapback]</div>
    Hey man I am going to be using my 5 speed this my 6.0l swap but I now that wont last long. I was wornding if you know if the trans crossmember needs to be moved back and do you know how big of a drive shaft needs to be made or dose someone make one?
    I think a 6.0l and t56 would be freckin sweet.
    [/b]
    I think some have used the 5 speed from a truck without any durability issues. You could make the mounts so the tranny sits in the same place and you wouldn&#39;t have to mod the driveshaft or the crossmember. I&#39;m sure you could find someone who has already done this swap and could lend more information.
    2006 Superior Blue Trailblazer SS AWD, Stock as a rock

    Sold: 2002 GMC Sportside Denali front end with a 2002 LS1, FLT level 5, Yank 2600, Trick Turbo, T76, Nelson intercooler, 60LB injectors, Warbro fuel pump, Eaton locker, Magnaflow, 3.42, Nelson Performance Tuning (speed density).

    Sold: 1981 GMC LB RC 1500 2002 4.8L 4L60E 12 bolt 3.73 Richmond Lock Right AC PS Nelson Performance tuning

  5. #5
    Join Date
    Nov 2005
    Posts
    30
    I hope my 5 speed will last ,I know some joegibbs supercharged silverados came in 5 speeds they make 400+hp. I just hate the granny gear pointless.

  6. #6
    Join Date
    May 2003
    Posts
    60
    If anyone is thinking about buying an LS2, make sure you get a 2005 if you plan on running a GenIII PCM with it. The &#39;06 and newer LS2s require a GevIV pcm as they have a different reluctor wheel for the crank sensor.
    Old: 1998 K1500 White ext cab stepside, vortec 350. Stock besides Volant intake.

    New: 1998 K1500 with stock LS2 besides LQ9 truck intake and 8.1L Marine injectors. Dynotuned, 350rwhp, custom 3.5" exhaust, &#39;02 F-Body Racetronix fuel pump setup. All wiring, exhaust, motor brackets done in shop.

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