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Our Learning Center was created to help enthusiasts make informed decisions about performance and drivability. Whether you're building your first project or your tenth race car, you'll find resources designed to simplify converter selection.
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The Torque Converter Buyer's Guide
New to picking a converter? Our cornerstone guide walks through stall speed, lockup, construction, and how to match a converter to your exact combination, start to finish.
Featured Categories
Stall Speed Guides
How to choose the right stall for your exact combination.
Browse guides →Ford Performance Guides
Converter selection for C4, C6, AOD, AODE and 4R70W builds.
Browse guides →GM & LS Performance Guides
TH350, TH400, 700R4, 4L60E, 4L80E and LS-swap tips.
Browse guides →Mopar Performance Guides
727, 904 and 518 converter guidance for Chrysler builds.
Browse guides →Towing Guides
Keeping temps down and getting the right stall for hauling.
Browse guides →Turbo & Boosted Guides
Matching a converter to turbo, supercharged and nitrous combos.
Browse guides →Racing Guides
Bracket, heads-up and no-prep converter strategy.
Browse guides →Technical Support Articles
Installation, troubleshooting and compatibility answers.
Browse guides →Popular Articles
What Stall Speed Do I Need?
The single most-asked question, and how to answer it for your engine, weight, gear and tire.
How Torque Converters Work
Impeller, turbine, stator and lockup: what actually happens between your engine and transmission.
Lockup vs Non-Lockup
When a lockup converter is worth it, and when a non-lockup keeps things simple.
Signs of a Bad Torque Converter
Slipping, shuddering, overheating, stalling: how to tell the converter is the culprit.
Best Converter for a Cammed LS
Why a bigger cam changes your stall needs, and how to spec the converter to match.