Yank ST/SP/YPE/SS, what's the difference?
 

In the Yank stalls, what's the difference between the ST, SP, SS, and YPE stalls? I'm looking for a stall that stalls to 4k on a na 4L60E. I was thinking a 3600 stall? Help!

Why not rework your Vigilante, you can save money here, and the difference between Yank & Vig are slight at best.

Give us a call we will get you the right converter choice!!!
Dave 775 826 9955

actually if anyone has any real input on the differences in the intenals or externals (if any) with these different "lines" of convertors it would be much appreciated.

ST = not available for F-bodies.
SS = Good street & strip converter
YTP = Best max performance converter, but very loose feeling.
"E" suffix = Extreme. Converter is designed for FI applications.

Pump & Stator combinations change between lines. Extreme converters have (or had) a posi-lockup clutch that engaged at 475 ft-lbs.