3406e-5ek HP upgrade

Discussion in 'Trucks [ Eighteen Wheelers ]' started by WallyGator, Nov 23, 2008.

  1. WallyGator

    WallyGator Medium Load Member

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    83
    Apr 6, 2008
    Clearwater,Florida
    0
    I have a 355-410hp motor in my truck and am going to add the two wires as ive read about here.but am wondering what else i could do within reason for more HP.also who do you guys get to mess with your computer CAt here in Florida wont even consider doing it. thank you in advance for your responses. Walt
     
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  3. DDS

    DDS Medium Load Member

    519
    177
    May 20, 2008
    Toronto
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    Need your engine serial number, that engine most likely has aluminum pistons, can not go to high with the hp. If you overhual, you could upgrade piston packs, cooling jets, camshaft and injectors to make it a 550hp
     
  4. WallyGator

    WallyGator Medium Load Member

    333
    83
    Apr 6, 2008
    Clearwater,Florida
    0
    I had the motor rebuilt 200000 mi ago and looking at the reciept the part# for the cyl packs are or8333.the new pistons were 2 piece pistons becouse the motor had a recall on the alum pistons getting holes in them.when i had it rebuilt the mech told me that they put 410HP parts in and they were better? i will say it dose pull better since rebuilt then before.im going down to the truck now to get the ser# check back later.Thanks Walt
     
  5. WallyGator

    WallyGator Medium Load Member

    333
    83
    Apr 6, 2008
    Clearwater,Florida
    0
    im back..the #s are SER#5EK39064
    ARG#120-8977
    PERF#120-4074
    HP#355-380
    I was told it was a 355-410 so i dont know about the HP deal

    THANKS WALT
     
  6. DDS

    DDS Medium Load Member

    519
    177
    May 20, 2008
    Toronto
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    Those are 410hp piston packs, what injector do you have and were they replaced at time of inframe?
     
  7. broncrider

    broncrider Road Train Member

    ok....ive got a 5EK 3406e and im a 435????

    darn now i wish they hadnt washed all of that darn sticker off....i wanna know what i can get it up to
     
  8. DDS

    DDS Medium Load Member

    519
    177
    May 20, 2008
    Toronto
    0
    0R8913
    133-7538 PISTON & ROD GP
    S/N 5EK79006-99999; 6TS1-UP
    16.25:1 COMPRESSION RATIO
    FOR USE WITH 425 OR HIGHER HP ENGINE
    ALSO AN ATTACHMENT


    0R8333
    135-2851
    PISTON & ROD GP
    S/N 5EK80007-99999; 6TS1-99999
    FOR USE WITH 425 OR LOWER HP ENGINE
    ALSO AN ATTACHMENT


    There is a piston difference, I do not know how much hp a lower 410 hp can take, they are both a 16.25:1 compresssion.
     
  9. DDS

    DDS Medium Load Member

    519
    177
    May 20, 2008
    Toronto
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    I would need to know the engien serial number of the engine, It may go to a 550hp with only injectors and turbo, It may only go to a 455 hp as is.
     
  10. broncrider

    broncrider Road Train Member

    on the emissons sticker at the back of the valve cover.....it looks like it says 5ek48751....but its hard to read

    the sticker on the front end of the valve cover is torn due to a pressure washer

    if my wifes home ill have her see if its right (i have a new data plate at home, just havent scribed the info on it
     
  11. Les2

    Les2 Road Train Member

    5,150
    2,288
    Jul 25, 2008
    kicked back in my lazyboy...
    0
    My dad had the 5ek 455hp but when the overhauled it he had them build it a 550hp....What a difference that made.

    Oh and when it was at 455hp, the fuelmileage sucked big time! It ws the gutless wonder that sucked fuel.....:biggrin_2552:
     
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