Hi, I'm new here and I'm starting a project of a 1973 Mercury Cougar powered by a Ford Racing 460 Stroker and fully roller. I was wondering if a 6R80 or even a 6R140 auto trans would fit in that engine that has a torque estimated in 700 ft/lb and power around 750HP @ 6000RPM. I'm projecting a car to drive in extreme high speed in German Autobahns! By my calcs, a car with 27" tire height, 3.25 rear ratio and a .67 Overdrive ratio, it should (on theory of course) @ 5000rpm reach 185MPH. I'm pretty sure the engine I'm researching is able to do that. If I beat a stock E63 AMG Mercedes, I'll be happy. The question is if the transmission and the rest will stand! If you guys heard or know something like that from another insane like me, please let me know!