Currently in the middle of a build and realized i have the option of either sticking with the 4l60e or switching to the t56...I already have both trans and everything to swap so i can sell the other the question is which one would be better for my application.

Build is a lt1 383 stroker procharged at about 8lbs of boost.
Car is driven DAILY, and will be raced on track at times.
Pretty set on getting a 12-bolt with 3.73 but will take any suggestions.
Racing on slicks 315/35/17.

Got a deal of a lifetime on the whole swap for the t56...but realized if I am planning on having close 550hp do I really want to change gears myself?
I could rebuild my 4l60e with the money I sell my t56 for.

I mean after all some of the fastest car are running th400, powerglides, 4l80e

But being the I am going to be driving it daily thought maybe the t56 would be a better idea.

Open to any opinions let me know what you think!

 

T-56's are fun but not in the spring summer or time on ocean blvrd in Myrtle beach. ive broken a t56 with 13k miles on the clock. car only went 13.20's second gear synchronizers couldn't handle the drag radials