I don't think I'd want a high stall converter in a plow truck.
Awe, damn okay thanks Bob, I'll get the stock torque converter then. Thanks ah tonHard to say, not knowing all the variables, but, normally you would not want higher stall UNLESS you have drastically changed the engine, so thta it now has way less torque at low rpm's, which is highly unlikely in a big block, unless it is a racer, OR you have added so much weight-like a heavy bed, or/and push lots of snow with a 5" high 10' blade, and have trouble getting moving.A higher stall speed is only to "get things moving" as fast as possible, using the proper torque range of the motor.
If you have never driven one, around town, or, envision this,plowing down hill, your speed is getting too fast, take foot off gas, then need to speed up again, it will not be smooth, think more like "rocking chair".
But, yes, it will make the trans fluid much hotter, much quicker, in a plowing or around town situation.