Torque converter for 340

And they will also want to know A LOT MORE INFO on the engine like Compression ratio, horsepower, & torque, did you Dyno the engine, tire size, exhaust, intake and carb. And exacting cam specs!
Believe it or not all of these things add up.

My guys are down the block from me. Check them out for an idea or use them.
ProTorque High Performance Drag Racing Torque Converters