Pick a GM transmission below. We’ll take you to the correct converter collection.
Match stall to cam/gear/tire/weight/usage. For tow/daily, go slightly lower stall; for aggressive cams or sticky tires, step up.
Recommended for heavy trucks, towing, tuning, or higher torque—keeps lockup stable and reduces heat.
Jump to: Choosing Stall • Billet Covers & Multi-Disc • Cooling & ATF • Install Checklist • Break-in & Lockup
Stall should follow cam, gearing, tire, weight, and usage. Towing or daily stock cams prefer lower stalls for control and heat management; aggressive cams and sticky tires may need higher stalls to get into the powerband without bogging.
Heavier vehicles and higher torque benefit from billet covers (rigidity under lockup) and additional clutch area (multi-disc) for stable, repeatable lockup at load—especially with tuning, towing, or track use.
Converters multiply torque (heat!). Run fresh full-synthetic ATF and verify strong cooler return flow. Add a low-restriction auxiliary cooler to keep temps in check during towing, big power, or hot climates.
First 300–500 miles: easy throttle, varied speeds, no sustained WOT. If lockup is tunable, ramp it in progressively to seat the clutch. Recheck fluid level after first heat cycles.
Match stall to cam, gearing, tire, weight, and usage. When in doubt, choose slightly lower stall for tow/daily; call us with your setup.
For heavy trucks, towing, or higher torque, yes—added rigidity and clutch area stabilize lockup and reduce slip/heat.
Not when correctly matched and cooled. We strongly recommend an auxiliary cooler for towing and performance builds.
Most converters include a refundable core charge. We provide return instructions; credit is issued after inspection.
