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Thread: How Much Horsepower Do These Stock 4l60/65e Handle?

  1. #11
    Join Date
    Nov 2007
    Location
    THE MEAN STREETS OF OKLAHOMA
    Posts
    11,120
    yea i did a number on my sprag ask greg
    THEY CALL ME G.

    AZRAEL

    2017 RZR 1000 2 SEATER
    2023 RZR 1000 XP 4
    2008 LTZ DURAMAX 3500
    2023 300S 5.7
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    The difference between winning and losing, is having a 2nd stage.

  2. #12
    Join Date
    Aug 2008
    Location
    North Texas
    Posts
    12,078
    Didn't have to G, I know everything. Also heard your reverse input drum was stuck to the input housing...

  3. #13
    Join Date
    Jan 2009
    Location
    maryland
    Posts
    54
    interesting, im going off of what a guy who has been rebuilding them for years. i know from my experience in mine going was 1-2 and 2-3 is what went bad. thanks for the input!

    LQ4 6.0- 224/224-.560/.560-112 cam, long tube headers, flex-a-lite efans, k&n intake, throttle body spacer, msd 8.5's, e3 iridium plugs, and special thanks to Justin at Black Bear.

    4L60E- "The Beast" sun gear, super hold servos, transgo shift kit, pinless accumulater piston, 5 pin planetaries.

  4. #14
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    I have always heard the stock units are good to 350 ft/lb tq. TH400 is dependable to 400 ft/lb tq. Beyond that you better have them built up for more power.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  5. #15
    Join Date
    Feb 2008
    Location
    Arizona
    Posts
    648
    how much rwhp will they hold if you put a hd-2 shift kit and vettes servos?
    06' Silverado RCSB 5.3L 4wd..
    PERFORMANCE: Cam, Springs, Pushrods, P&P heads & 3 angle valve job, Injectors, PS LT's & ORY, Nelson Tune, Catback, CAI, Comp Cam Double Timing Chain, HP Oil Pump, UD Pullies, ARP bolts, Stall, TBS, 4.10's, Iridium NGK's, G-80, 160 t-stat, HD-2 & Vette Servo, 46,000 tranny cooler, 75-125hp shot of funny Gas..
    HID's Hi, Lows & Fogs
    Waiting to be installed: LC-1 WB & Standalone system

  6. #16
    Join Date
    Dec 2008
    Location
    Del Rio, TX
    Posts
    311
    Havnt taken mine apart yet but Im guessin i had about 350 to 375whp with the tune I had. Tranny had 40k on it out of 00 camaro and my 2nd gear seems to be somewhat out now after one trip to the track. Im gonna rebuild with better internals and see where that gets me.

    1993 Gmc 02 ls1 Circle D 3400 stall, long tubes, 220/224 cam stage 3 heads, weiand intake, auburn posi, 389rwhp 352ft/lbs

  7. #17
    Join Date
    Dec 2007
    Location
    College Station, TX
    Posts
    1,464
    Quote Originally Posted by TMC View Post
    i had 150 shot on my truck and destroyed it in 2 weekends
    lol

  8. #18
    The best answer of all is . .. . . .Not enough.
    Depends too on how much weight its pushin and wether its 4wd. But still it isn't remotely close to enough.
    99RCSB Broke because I wasted thousands and thousands of dollars on my truck.

  9. #19
    Join Date
    Dec 2003
    Location
    Azle,TX
    Posts
    3,682
    Well in my case....2 were destroyed because of wheel hop and abuse.the other 2 had too much line pressure and broke the case.The 60 in my truck now has had the line pressures dropped alot over stock,installed vette servos and most important the force motor current values tuned properly by the expert (RussK) from HPTuners fame and I am at 100+k miles ans has no wear at all,no metal in the pan when fluids changed.Everybody that knows me also knows i beat the hell out of my truck.The latest beating was a trip to houston and pulling a 87 mustang at 80 mph average back to DFW.I have learned alot about transmissions over the years and mine has taken everything Ive thrown at it and continues to hold up.BTW i went to the Ford Basturds dyno day in Saginaw saturday and made 2 pulls and i pick up 10HP w/my new intake setup! WoooHOOO!
    Vortec Performance Tuned
    LQ9 built 4L60 LTs and a billion miles on the speedo!

  10. #20
    IDK, my stocker went at 80k miles, my replacement went twice, 10k miles each after that.. no explainations possible aboot why they went, no one really knows why mine went.
    so I am stepping up to a 65, with a billet output shaft. I wish I could afford the billet input too.. but i cant have it all.
    Sponsored by Taylor Wires!
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