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  1. #1
    Junior Member askkmb's Avatar
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    Black
    2003 Silverado SS

    4L65E making it stronger

    Hey guys
    What do i need to do on a 4L65E(2003 Silverado SS) so i could handle well about 600 hp?? Any ideas?? Im planning on a 600 hp engine in that truck but i figured out that the stock tranny maybe woulnt handle so much horses. What do you guys think???

  2. #2
    Junior Member askkmb's Avatar
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    2003 Silverado SS

    Anyone??? Please.

  3. #3
    Senior Member Y2KArcticSS's Avatar
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    2016 Camaro SS - Summit
    2001 Trans Am WS6 - NBM

    I would assume you would need to beef up the internals. I'm sure they have a rebuild kit spec'd for that kind of power. Definitely need a better torque converter.

    Aaand that's about all I got. I'm more of a manual transmission guy so my knowledge is limited. Free bump though lol

    Sent using my telèfono

    2016 Summit White 1SS - The DD - Mishimoto catch can, Solo axleback & secondary cat delete, LED sidemarkers & reverse lights, head/taillight blackout, RCC custom badges
    2001 NBM Trans Am WS6 - Torquer V2 cam, Yank 3000 stall, Transgo kit, Racetronix fuel pump, TSP LTs, Magnaflow catback, Strano Springs/Koni STR.T shocks, 17x9.5/17x11 TTII's
    2000 Arctic White SS #1667 - Sold

  4. #4
    Junior Member askkmb's Avatar
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    2003 Silverado SS

    Quote Originally Posted by Y2KArcticSS:2782754
    null
    Thanks, do you know any shop i could buy a good rebuild kit for a good price?? And do you think the stock rear end would handle 600 horses??

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