Can a 4l60e converter be changed...

[turboost]

Can a 4l60e converter be changed to work on a 200r4? I have a Yank converter out of my LT1 and was wanting to know if it could be changed to work with my GN. Can the splines be changed? Thanks

 

[MeanBuicks]

An LT1-style converter can have the spline changed to the 200-4R, 27-count setup. The newer, LS1-style, however, is considerably different.

 

[turboost]

How hard or how much would this cost to have done?