Hey guys, curious on how the 4L65Es hold up because a friend of mine is selling his for 600 including the stock converter minus the tailshaft and bellhousing, is this a decent price?? came out of a 2006 GTO with 15k miles.

can these trannies hold a lot more than the 4L60E? i am planning on having 500 whp but with a stock converter and trans cooler.

 

Differences are the front support, sun shell, front and rear planets (5 pinion instead of 4) 7 disc 3-4 clutch setup instead of 6, and a hardened output shaft. I think the front support and hardened output shaft are worthwhile upgrades, while the 5 pinion planet is questionable as an "upgrade" and the 3-4 clutch pack is usually upgraded in either unit anyway. Basically since the upgrades are minimal, in stock form I don't think it is "a lot" stronger.

Sean

 

That is and excellent price for a good used unit with milage than low

 

One other thing I forgot to mention is the boost valve sleeve in the '05-later units is shorter, therefore the aftermarket .490" and .500" valves aren't a direct fit in the pumps. The sleeve would have to be machined down.

Performabuilt is right, that is a decent price for a low mileage unit!

Sean

 

so the 4L65E wont be a direct swap ill have to machine down the lines or?

 

No its a direct swap whats hes talking about is internal

 

so will i have to open it up and correct this or???

 

No you do not need to open it up , what hes mentioning is a mod you have to do if you want to install and aftermarket boost valve. Too just use it you only need to put it in as is,

 

ah ok cool thanks!