TH400 Torque Converters & TH400 Stall Converters

The Turbo Hydra-Matic 400 automatic transmission is the heavy-duty version of the TH350. Starting in the 1960s, TH400s were found in heavier, more powerful GM vehicles,...

The Turbo Hydra-Matic 400 automatic transmission is the heavy-duty version of the TH350. Starting in the 1960s, TH400s were found in heavier, more powerful GM vehicles, like trucks. Because of their strength, reliability, and their compatibility with small and big block Chevy engines, they became popular options for performance builds, like race cars and off-road vehicles.

A torque converter—also called a stall converter when it features higher stall speed—is a fluid coupler that transfers power from your engine’s flexplate to the transmission. It’s roughly equivalent to the clutch on a manual transmission vehicle. For more details on how they work and how to choose one for your application, check out this video on our blog, On All Cylinders.

Your stock converter is fine for everyday driving, but an aftermarket converter can change the way your TH400 transmission performs. Generally, a higher stall speed can help you launch harder, while a lower stall speed is great for towing. The heat and pressure created by high horsepower can also cause ordinary converters to “balloon” or expand, causing misalignment and damage. Most aftermarket converters are reinforced with anti-ballooning features to survive these conditions.

Top Brands

As the vital link between your engine and your TH400 automatic transmission, you need a reliable torque converter that can handle the demands of performance driving. Summit Racing Equipment only carries converters from trusted name brands like TCI Auto, Hughes, B&M, Hays, Allstar Performance, and more. They’re the parts we use on our own project vehicles!

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Summit Racing™ Nitrous 3,200-3,500 Stall Torque Converter SUM-700361-BC

Summit Racing™ Nitrous 3,200-3,500 Stall Torque Converter SUM-700361-BC

Torque Converter, 10 in. Diameter, Billet Cover, Powerglide, TH350, TH400, 3,200-3,500 Stall, Each

Part Number: SUM-700361-BC

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Summit Racing™ Nitrous 2,800-3,200 Stall Torque Converter SUM-700360-BC

Torque Converter, 10 in. Diameter, Billet Cover, Powerglide, TH350, TH400, 2,800-3,200 Stall, Each

Part Number: SUM-700360-BC

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tomorrow

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TCI Breakaway 2,400-2,600 Stall Torque Converter 240900

Torque Converter, Breakaway, Chevy, TH350/TH400, Each

Part Number: TCI-240900

4.29 out of 5 stars ( 24 )

Estimated Ship Date: Tomorrow

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FTI Performance MR Series 4,000 Stall Torque Converter MR8082

Torque Converters, MR Series, Hard Hitting, 1.703 in. Crank Pilot Diameter, 30-spline, 9.500 in. Diameter, Race Usage, TH350, TH400, Each

Part Number: FTI-MR8082

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Summit Racing™ Nitrous 3,700-4,100 Stall Torque Converter SUM-700362-BC

Torque Converter, 10 in. Diameter, Billet Cover, Powerglide, TH350, TH400, 3,700-4,100 Stall, Each

Part Number: SUM-700362-BC

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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FTI Performance SR Series 2,600-2,800 Stall Torque Converter SR3380

TORQUE CONVERTER

Part Number: FTI-SR3380

Not Yet Reviewed

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TCI Breakaway 2,200-2,600 Stall Torque Converter 241100

Torque Converter, Breakaway, Chevy, Buick, Oldsmobile, Pontiac, TH350/TH400, Each

Part Number: TCI-241100

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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TCI Breakaway 2,400-2,600 Stall Torque Converter 240901

Torque Converter, Breakaway, Chevy, TH350/TH400, Each

Part Number: TCI-240901

4.63 out of 5 stars ( 16 )

Estimated Ship Date: Tomorrow

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TCI StreetFighter 3,000-3,600 Stall Torque Converter 241000

Torque Converter, StreetFighter, Chevy, TH350/TH400, Each

Part Number: TCI-241000

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Tomorrow

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FTI Performance SR Series 3,000-3,200 Stall Torque Converter SR0082

Torque Converter, SR Series, 3,000-3,200 rpm Stall, 10.750/11.500 in. Bolt Circle, 9.5 in. Dia., 1.703 in. Crank Pilot, Chevy, TH350/TH400, Each

Part Number: FTI-SR0082

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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FTI Performance SR Series 2,800-3,200 Stall Torque Converter SR3082

GM NON LOCK-UP TH350, TH400 2800-3000 STALL

Part Number: FTI-SR3082

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tomorrow

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TCI Super StreetFighter 3,500-3,800 Stall Torque Converter 241002

Torque Converter, Super StreetFighter, Chevy, TH350/TH400, Each

Part Number: TCI-241002

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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Hughes Performance XTM Heavy-Duty Towing Series 1,500 Stall Torque Converter GM5 XTM-1

Torque Converter, XTM Heavy-Duty Towing, Chevy, TH400, Each

Part Number: HUP-GM5XTM-1

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Tomorrow

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TCI StreetFighter 3,000-3,600 Stall Torque Converter 241001

Torque Converter, StreetFighter, Chevy, TH350/TH400, Each

Part Number: TCI-241001

3.73 out of 5 stars ( 11 )

Estimated Ship Date: Tomorrow

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FTI Performance SR Series 3,400-3,600 Stall Torque Converter SR6082

GM NON LOCK-UP TH350, TH400 3400-3600 STALL

Part Number: FTI-SR6082

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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FTI Performance SR Series 4,000 Stall Torque Converter SR8082

GM NON LOCK-UP TH350, TH400 3800-4000 STALL

Part Number: FTI-SR8082

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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TCI Breakaway 2,200-2,600 Stall Torque Converter 241200

Torque Converter, Breakaway, Chevy, TH350/TH400, Each

Part Number: TCI-241200

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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TCI Ultimate StreetFighter 3,500-3,800 Stall Torque Converter 241003

Torque Converter, Ultimate StreetFighter, TH350/TH400, Chevy, Each

Part Number: TCI-241003

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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TCI Breakaway 2,200-2,600 Stall Torque Converter 241101

Torque Converter, Breakaway, Chevy, Buick, Oldsmobile, Pontiac, TH350/TH400, Each

Part Number: TCI-241101

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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Boss Hog Night Stalker 2,200-2,800 Stall Torque Converter 46012

Torque Converter, Night Stalker, 12 in. Diameter, 2,200-2,800 Stall, GM, TH400, Each

Part Number: APE-46012

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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TCI Ultimate StreetFighter 3,500-3,800 Stall Torque Converter 241004

Torque Converter, Ultimate StreetFighter, 10 in., Chevy, TH350/TH400, Each

Part Number: TCI-241004

Not Yet Reviewed

Estimated Ship Date: Jan 15, 2026 if ordered today

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Estimated Ship Date: Jan 15, 2026 if ordered today

TCI StreetFighter 3,000-3,600 Stall Torque Converter 242101

Torque Converter, Super StreetFighter, Chevy, Buick, Oldsmobile, Pontiac, TH350/TH375/TH400, Each

Part Number: TCI-242101

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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Boss Hog Night Stalker Stock Stall Torque Converter 46000

Torque Converter, Night Stalker, 12 in. Diameter, Stock, GM, TH400, Each

Part Number: APE-46000

1.0 out of 5 stars ( 2 )

Estimated Ship Date: Tomorrow

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TCI Super StreetFighter 3,500-3,800 Stall Torque Converter 241022

Torque Converter, Super StreetFighter, Chevy, TH350/TH400, Each

Part Number: TCI-241022

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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FTI Performance MR Series 3,500 Stall Torque Converter MR6082

Torque Converters, MR Series, 1.703 in. Crank Pilot Diameter, 30-spline, 9.500 in. Diameter, Race Usage, TH350, TH400, Each

Part Number: FTI-MR6082

Not Yet Reviewed

Estimated Ship Date: Tomorrow

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