273 Commando automatics....what's special?

cudavert said

I'm curious to know if anyone knows exactly what a 273 Commando 904 consists of? All I have heard is that they use a higher stall torque converter (hemi?) and different springs in the governor for higher upshift speeds. But this is not confirmed.......anyone have first-hand knowledge of what makes them special?

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* High-Speed Governor {Allowed for higher up-shift points}
* Wider Ring-Gear for the Torque-Converter

Things get cloudy with the Torque-Converter. The standard 273 {2-Barrel}
unit was rated at 1800 RPM's.

Though Fred Hines, who ran a 1965 Barracda '237 Commando' in F/SA for the
factory 'back-in-the-day', stated that the 273/235 HP Torque-Converter was rated at +150 RPM's over the {2-Barrel} Converter.