Take a look at this thread and voice your experience.

https://ls1tech.com/forums/showthread.php?t=1012990

 

I voiced what I know...and what I know leads me to wanting an FLT trans when the funds will allow

 

The guy is crazy if he goes with a 4L65E. The fact that the 60E series transmission was used in V6 power Camaro's and such should tell a guy something. Yea it can be upgraded and polished to a gleaming turd but when you get all done with it your hands are still gonna smell like poo. Again nothing against the 60E series transmission, it has its place, just not the link in a 750 rwhp food chain. 80E and piece of mind go hand in hand.

 

Hope he gets the 80e from you guys