Factory High Stall Converters

The Chevy guys found a smaller converter has a higher stall but they don't always like the horsepower.

3forty said

I have a '70's era 9 inch converter in my 340 Duster. It feels quite mushy at low speeds. Stand on it,locks up and goes.

Click to expand...

I don't know when the good performance converters became popular but the early ones were just like you described. I sold quite a few back then when I worked at the speed shop. Most were just smaller diameter converters for a higher stall. The converters now are way different by modifying them internally.