tarinitup

iTrader: (11)

How much horsepower can a stock 4l60 handle?

BeefTip

Bone stock i would imagine take 300rwhp ok for a while, it would also depend on how you were driving. I would do a shift kit and servos at the least no matter if you are doing big mods or not.

BeefTip

BTW, i dont know where i got 300rwhp from, it would probably take a little more but im just guessing.

5.3 racer16

cant they blow just stock with just a heavy foot.?

99Silver6.0

iTrader: (1)

Id say whatever the stock HP of the motor its hooked to is the limit.

nick_4.8sierra

iTrader: (2)

mine stock 4l60e blew up 3 weeks ago.. (both the tranny & motor were bone stock)

I guess that's from shifting at 6,000 rpm's all the time??

1slow01Z71

iTrader: (36)

Blew mine with just exhaust K&N dropin filter anda tune and boom bye bye 60e. Anybody care to take bets how long the fully built 60e will last behind the new setup

60e's are a POS end of story ditch it and get you and 80e if you plan on modding very much

Breeze

iTrader: (16)

Bad driving habits is what kills them.

DrX

iTrader: (7)

This new 4L60E four-speed automatic transmission assembly features electronic control of shift points, shift feel and torque converter clutch application. The two-piece transmission case allows use behind GM engines that have a Chevrolet V8 bellhousing bolt pattern and produce no more than 370 lb-ft of gross engine torque. This gearbox features a 3.06 first gear ratio for great acceleration and a 0.70 overdrive fourth gear ratio improved fuel economy. The high stall torque converter produces a stall speed of approximately 2300 RPM behind most small-block engines. The output shaft does not contain provisions for a mechanical speedometer application. The production use of this transmission assembly was for the police package 350 Vortec powered Chevrolet Tahoe. For proper transmission operation for both carbureted and fuel injected applications a control module and wiring harness is also available separately. 4L60E gear ratios: 1st 3.06, 2nd 1.75, 3rd 1.00, 4th 0.70. Use with transmission controller P/N 12497316.

greentahoe

iTrader: (2)

I think its more dependant on your driving habits than the power you are making. Im still on a 4L60 with nothing more than a huge cooler, vette servo, and PI converter. Ive got about 100K on mine and Im making a little more power than stock . I will say that Ive never stalled it up before a launch and I dont get into it very often. Never when the tranny is over 175*
That being said I may go with an all out 4L65 depending on how hard it will be to do the 80' conversion.