Factory Torque-Converters ~ Stall-Rate
PTC said to put the car in 3rd gear and mash it to the floor and record the RPM.
'Flash Stall'
Determined by, 'launching' the car at full-throttle, and observing peak speed
at launch.
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Regarding the 'Maximum Performance Packages'
* 1962 ........... '413'
* 1963 ........... '426'
* Early-1964 ... '426'
These Performance Packages came thru with 11.75" Torque-Converters, and
the Stall-Speeds were rated at {2000 to 2300 RPM's}.
What made the A-727 Transmission 'special', was the Heavy-Duty internal components.
These Transmissions were designed for hard-launching 'Neutral-Drops'.
But remember, the maximum allowable width for Slicks was {7"}. So coming
off-the-line 'hard' was not the way to launch in the S/SA Class.