Originally Posted by 75gmck25
The 4R100 was used with the supercharged F150 Lightning, so it should hold up to the HP of the Cobra engine.
Actually, the 4r100 used in the s/c lightnings are not normal 4r100's. They are beefed up with the 7.3 diesel trans internals. I know this because it was one of my questions to be svt certified.Also, the lightning never got a cobra motor, the lightning is a 2 valve motor while cobras are 4 valves.