thedipstick

But what kind of power are you guys running and how much are you thrashing on your truck? Other than the bolt on's, tune and whichever supercharger I go with, that's it. The way it sounds in here my 60 should be dead already since I added power and torque, that its so week to handle anything extra yet I have had zero issues.

That's the point, I will not be building huge power, taking it to the track, street racing daily or weekend street racing etc. Just a little boost.

I appreciate all the feedback, looks like two guys here have actually toasted their trans and I have no idea how you drive or how often. If I can find a shop that will confidently build me a 60e with a warranty then I will pull the trigger, if not then the truck will remain as is. I was hoping one of the transmission vendor's here would pipe in on this, FLT or PBT?

someotherguy

You don't have to believe the 4L60E is weak, or that it is difficult to build one to reliably stand up to power increases. People are trying to advise you correctly, but it's up to you to take that advice...or spend your money building something that is just gonna break anyway.

Richard

terravast4

iTrader: (25)

there are way more than two people on this site that blew up 4l60 transmissions. some blow them up with basic mods like a cam and bolt ons. I've blown up two myself. i don't beat on my truck at all, just spirited driving. we are all just trying to warn you of the inevitable

_zebra

iTrader: (5)

we might need to start with asking you to decide how you want the truck to feel/drive (considering you sound new to forced induction). not all boost feels or behaves the same, so here's a super-basic rundown:
a positive displacement kit (Manguson, Whipple, Roush, etc) will provide torque-on-demand at any RPM, and the boost/power essentially corresponds to how hard you're pushing the skinny pedal.
a turbo has to spin up as exhaust gases move faster, then it provides a set boost level until you let off. you'll feel it ramp up in the mid RPMs and then be a monster for the top half of your RPM range.
a centrifugal blower (Vortec, Procharger, Torqstorm, etc) is kind of a mix between the two: it's the compressor side of a turbo spun by the serpentine belt instead of the exhaust, so it drives like stock at low RPMs & builds up more boost pressure the faster it spins, so it gets more powerful the more you rev it.

positive displacement types are good for heavier vehicles that need some extra oomph to get moving as well as having a consistent, predictable power feel from any throttle position. if you pull a trailer or anything, this is especially beneficial, too.
turbos and centris are better for when you're spending most of your toying-around time in the top half of your tachometer because they need RPMs to really wake up. if you plan on drag racing, these're typically better-suited for you because they just keep pulling on the top end.

when you decide how you want the truck to feel, that'll help steer you toward a particular forced induction kit.

GM stopped using cathedral-port heads a long time ago, and in the past few years, the aftermarket stopped (or at least slowed way down) developing stuff for them, too.

i can vouch for the TVS: i've had mine for 6.5yrs & 35kmi with nothing but smiles. there's a truck TVS1900 kit for sale on the site right now & should be more than plenty for your goals (which sound like 6-9psi of boost).

unfortunately, the automatics are plagued with problems after adding any power. an old adage says " ya' gotta pay to play", and it's true - there're always underlying costs to pretty much any significant power upgrade because the truck is an entire system: you strengthen one part without making sure everything else can handle it, then the other parts will eventually fail.
i can't offer much specific advice here since i've only owned 1 automatic, and that was an old Explorer and more than a decade ago.

nothing against Torqstorm, i promise... i'm just playing devil's advocate here, but when i was buying my blower, i played the "working out a couple details" game for the better part of a year with another company before just buying a similar kit that was ready.

sometimes it's just a shock to hear something discouraging when you weren't expecting it.

arthursc2

iTrader: (5)

I love blowers. I live for them. I’ve had blown cars and trucks. The post above mine is excellent for explaining the positives of each.

However, STOCK trucks have **** the 4L60. My Tahoe was on its second trans when I got it at 126k, it was a police unit so we know it wasn’t played with nicely, but since it was a state owned vehicle, we also know it was bone *** stock.

Spend money how and where you want, but I promise you the 4L60 is a time bomb of failure at any power level.

M60gov20

iTrader: (1)

Call Superchargers online. I just picked one up last year form them for my 2002 2500hd. They can put a kit together for your truck, the only thing mine was missing was the throttle bracket and tune. Atomic has been tuning mine with a hptuner pro. He's great to work with. He bracket took about 15 minutes to make. There's a tvs 1900 for sale in the classified that should work well for your truck and has bigger injectors in it. I dropped down to a 3" pulley and outgrew my injectors right off the bat.

darkirish63

iTrader: (5)

Understood & appreciated but I've got a few other adds (Willwoods on the front) to make before I add the blower so I have a little time to wait - in no hurry at this point.

someotherguy

Stock TBI V6 trucks have **** the 4L60E.

Richard

trxmxzx

iTrader: (7)

trxmxzx

iTrader: (7)