5.3 to a 6.0 swap

Discussion in 'GM Diesel & DuraMax' started by 22inSilverado, Jun 23, 2009.

  1. 22inSilverado

    22inSilverado New Member

    Im looking at putting a different motor in my truck right now i have to factory 5.3 in it but i was looking at putting a 6.0 in it. What would all have to be done would i have to buy a new computer or could i have my old one flashed. I know i would have to have it tuned and what not, but i'm just looking for a little input from everyone!
  2. 5speedsilverado

    5speedsilverado New Member

    should be a direct swap, then just have the tune updated for the 6.0. you might want to consider the 4l80e tranny if your truck doesn't have one already.
  3. Cav_spartan

    Cav_spartan New Member

    Wouldnt putting in a bigger cam and crank push the displacement out??? sounds cheaper then a whole engine/ tranny swap....
  4. Joeairforce

    Joeairforce New Member

    A cam has nothing to do with displacement.
  5. TRPLXL2

    TRPLXL2 New Member

    New heads and getting it bored out would make the difference up, I personally like the 6.0 way better and that's from personal experience. I would research parts interchangeability between those two motors, you would be surprised what GMPP has in there catalogs if you have the $$$$$ :great:
  6. 2COR517

    2COR517 New Member

    He has another thread saying he's burning oil, so the motor is probably shot.

    I second the 4L80e.
  7. 2ToNe04

    2ToNe04 New Member

    nope just drop in and tune.

    maybe a tranny.

    When you get your 6.0, swap in some cams and beef it up before dropping it in.
  8. redneckarmyMP

    redneckarmyMP New Member

    i think this guys got the right idea:great:
  9. 2COR517

    2COR517 New Member

    Is the 6.0 overhead cam?
  10. DamnBigPapa

    DamnBigPapa New Member

    Consider this. The 6.0 is capable of producing a little better torque numbers, but the 5.3 is a solid performer. I had a 2002 1500 with the 5.3 ltr. When I wanted more "go" and "tow" I opted for a whipple supercharger. I will tell you that thing hauled A$$ following the upgrade. In all, it ended up costing me about $2900 but I had a full size 4X4 that would easily run with most anything I came across on the roads. Any time you decide to swap an engine to a different config, there are a lot of little costs and changes that can really add up. Not sure what your state's emissions standards are, but with the heavily computer controlled engines of today, you need to be very careful that you don't end up screwed when it comes time to have it tested. The numbers are predetermined and your truck will need to meet the stardards for that model. The tester/computer won't care how much work you've put in. It's simply a pass/fail.
    I ended up moving to a diesel because my toys got bigger.
  11. singleshot54

    singleshot54 New Member

    sometimes I wish I would have gone with a diesel in my '03 Silvrado 2500HD 4x4. I just resently got a new Travel Trailer and my 6.0 is working hard to pull it and carry my AC ATV in the bed.

    Hmm wounder if a conversion is possible?
  12. grimreapersshadow

    grimreapersshadow New Member

    no none of the v8 gm puts out for trucks and such are over head cam motors all over head valvetrain would be nice since dodge toyota and nissan have overhead cams
  13. hmaster77

    hmaster77 New Member

    Well if u just converted the engine that's in there to diesel it really wouldn't. Make to much of a difference but u could swap it out for a duramax and that would make it be pretty sweet but it won't be cheap though
  14. 2ToNe04

    2ToNe04 New Member

    overhead cams..... geezus.

    its cheaper to just buy a 6.0, than cams and doing all the FI.

    its a chevy not an import :)
  15. 1_low_rider

    1_low_rider New Member

    nicely done sir, i like the way you think!
  16. 2COR517

    2COR517 New Member

    I just asked myself why I asked that. Then I saw the previous poster suggested swapping in some cams, plural.

    I would think if you want the 6.0, the best way to go would be get an engine, trans, and PCM from the same truck and swap them in. If you have 4x4, get the transfer case too. Different spline count for 2500.
  17. ksteph1928

    ksteph1928 New Member


    this should do it - # 3
  18. vncj96

    vncj96 New Member

    i am pretty sure dodge has no OHC motor in their stockade, other then the diesel, and OHC is not necessarily better then OHV either, dont let the man fool ya. More moving parts, more specialized parts to do simple repairs, and way more timing involved too. There is also a reason GM has won awards for there VVT OHV motors, the blend of old school design and new school tech with proven reliability.

    On another note my uncle has 6.6 GM for his work trucks but his personal is a 6.0 and he had the 8.1 before that and would take his 6.0 anyday over his old 8.1. he always has his fourwheeler in the bed and is usually pulling a trailer with a bobcat or something on it with no problems.

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