cutlassmann

What will it take to install a 4L60E in my Oldsmobile cutlass 350 olds engine and what extra will I Need.

mrvedit

First an older style "LT1" 4L60E with a 298mm input shaft should be easier to adapt than the newer "LS" style with 300mm input shaft. This thread shows the pictures of the different input shafts:

https://ls1tech.com/forums/automatic...s1-4l60-e.html

The biggie is that you need an electronic controller which costs $500-$800.

You would likely find a 700R4 easier to install as no controller is needed and it should bolt right up. Others prefer the 200R4.

fbody_brian

You're going to need some kind of adapter for the BOP bolt pattern.

mrvedit

Yes! Wow, I forgot that the BOP bolt pattern is different from Chevy.