Quite often, a user always seems to ask about what stall speed they should get when buying a new torque converter. Although there is no perfect answer, here's a chart to give a basic idea of where to start based on camshaft advertised duration and operating range.

Adv duration : Operating Range : Cruise RPM @ 60 MPH : Recommended stall speed
260 : 1200-4200 : 2000-2500 : 2000-2500
266 : 1600-4600 : 2200-2700 : 2000-2500
272 : 2000-5000 : 2500-3000 : 2500-3000
274 : 2200-5200 : 2600-3000 : 3000
278 : 2400-5400 : 2700-3200 : 3000
282-286 : 3000-6000 : 3000-3500 : 3500-4000
302 : 3500-6500 : 4200-4600 : 4000-4500

As a general rule for street use, obtain a stall speed with a minimum of 500 rpm into the powerband. This will allow your engine to get into the area where it is designed to operate and your engine will make enough power to drive the converter into its stall speed. Race applications require a minimum of 1000 rpm more stall up to as much as the peak torque range for all out competition.

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