What stall converter for my 408 stroker

4mulas said

I also had a converter around 4K in the car and it was a pita. 430 gears that converter and a motor that makes peak power around 5600 rpm was only good for one thing. 1/8 mile from a dig. Otherwise it was completely annoying.

I have a 402 and the OP is talking about a 408 and these things are torque monsters. It starts at Over 400 ft pounds around 2000 and the curve is nice and flat all the way across the top. Power started to fall off on mine around 5600. The cam in. Mine is slightly smaller than the OP.

I would never run a 4200-4600 converter in this combo

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Well, converter technology has come LIGHT YEARS ahead of what it once was even 10 years ago. You can have a converter made that will flash to 5,000 RPM but drive around on the street like a stock converter. They don't have the slipping transmission feel anymore. His camshaft will be coming on like Katie bar the door at about 4K. He'll figure it out, I'm sure. I admit you're right though. The strokers do have an incredibly FLAT torque curve, so it would probably work well most anywhere in the curve. If it was mine, I would want the converter to be all over peak torque.