1/4 Mile Runs

[Z34guy]

the 4T60e could BARELY handle the stock power of the LQ1, and the LQ1 was known for blowing through transmissions stock every 50,000 miles. the 4T65e was redesigned and is capable of handling much higher outputs and just bolts right up. Even so, there's a heavy duty version imaginatively called the 4T65eHD which is DEFINITELY capable as it was used on the LS4 5.3L V8 powered W-bodies. Nothing is interchangeable between the 2 trannies (4T60e and 4T65e).