external balance torque converters

[qkcuda]

I am putting together a cast crank 400. My research indicates that the cast crank 400 and 440 engines used the same weights on the torque convertors. Does anyone know if the cast crank 340 and 360 LA engines used the same weights? I am looking for a stock 11 inch converter, and that would open up more possibilites.

 

[dano]

I think they are different. Another option is a weighted flex plate, I'm sure there are others than the one I linked below.

B&M Flexplate

 

[qkcuda]

Yes, the weighted flexplate is an option as well.

 

[Max1196]

Cast crank 383, 400 and 440 . 12.9 inch/ ounce balance required.
"Heavy" rod or "6 bbl" rod . 6.5 inch/ ounce balance required.
340 Cast crank. 4.22 inch/ ounce balance required.
360 Cast crank 19.79 inch/ ounce balance required.
5.9 Magnum 12.825 inch/ ounce balance required.
So that would be a NO, 340 and 360 LA do not use the same weight.

 

[qkcuda]

Thanks Max, that is what I needed to know