2014 6.2 procharged silverado

[Erik Villarreal]

What torque converter and stall speed would y’all recommend for a 2014 6.2 procharged silverado?

[Jsdirt]

Depends on where you built the engine for max power delivery. If you've got a huge cam and it's all top end, you might want to go up a few hundred RPM on the stall. These engines tend to be top weighted on power anyway, so a couple hundred RPM won't hurt, and will still be able to be driven in snow without uncommanded fishtailing everywhere.

 

 With a blower, you'll want an anti-ballooning converter at the very least. 

 

On my N/A Silverado, just going up 200 RPM on the stall when I replaced the transmission made a HUGE difference in off-the-line power. Made towing much more enjoyable. My truck was a gutless slug off the line for YEARS. It's finally tolerable now. Nowhere near the old school days of the 350 & 454, but tolerable for an LS.

[shakenfake]

I would suggest calling Circle D and telling them what you have and let them choose one for you.

[Doug_Scott]

I would suggest contacting Precision Transmission.  They have a YouTube site with more pertinent performance transmission information than any other site I have seen. 

Something you need to keep in mind is your transmission has a lockup converter in it that removes high stall speed once the convertor locks up.  I'm from the old school when lockup converters didn't exist, actually Chrysler went to 727 and 904 with very basic lockups(compared to current offerings) in the late 70s, so driving with a high stall converter was something that was active at all times. 

Superchargers create torque with little to no delay.  No real need for higher stall speed.  If you are planning on needing a stall speed over 2500 and plan on driving your truck daily in a hilly terrain at highway speeds, you may find the transmission having to downshift or unlock the converter on hills. 

Prior to lockup converters it was a far simpler process of going to a higher stall speed.