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B&M 20402

Tork Master 3000 Torque Converter 1965-1991 GM TH375, TH400 & TH425

B&M 20402
B&M® Rebate
Expires on February 28, 2018

The purchase of any B&M product(s) of $150.00 to $299.99 will receive a $25.00 rebate.

The purchase of any B&M product(s) between $300.00 and $499.99 will receive a $50.00 rebate.

The purchase of any B&M product(s) of $500.00 or more will receive a $75.00 rebate.

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B&M 20402 Tork Master 3000 Torque Converter 1965-1991 GM TH375, TH400 & TH425 $329.99
Tork Master 3000 Torque Converter
  • 1965-1991 GM TH375/TH400/TH425
  • 1968-1981 GM TH350/TH375B
  • 2800-3200 RPM Stall

  • Specifications:

    Trans Year
    1965
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    1966
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    1969
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    1978
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    1981
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    1982
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    1983
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    1985
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    1986
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    1987
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    1988
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    1989
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    1990
    Trans Year
    1991
    Stall Speed (RPM)
    2800-3200
    Trans Model
    GM- TH350 (Auto)3 Speed
    Trans Model
    GM- TH375 (Auto)3 Speed
    Trans Model
    GM- TH400 (Auto)3 Speed
    Trans Model
    GM- TH375B (Auto)3 Speed
    Trans Model
    GM- TH425 (Auto)3 Speed
    Automotive Item Grade
    High Performance
    Hardware Included
    No
    Anti-Ballooning Plate
    No
    Balanced
    Yes
    Furnace-Brazed
    No
    Lockup
    No
    Quantity
    Sold individually
    Manufacturer's Part Number:
    20402

    High Stall Performance At An Incredible Value

    B&M Tork Master Torque Converters are excellent all-around performance street converter. Even without a highly modified engine, these converters will give you better acceleration through a higher stall speed, allowing the engine to develop more torque at the time of initial acceleration. Tork Master Torque Converters are put together with new pump drive tubes, needle bearings were equipped on the original model, and new thrust washers.

    Features:
  • Highest quality-value priced street performance converters available
  • Rated up to 350 HP/350 Ft-Lbs
  • New precision steel pump drive tube
  • Needle bearings where factory equipped
  • New thrust washer between turbine and cover

    Notes:
  • Not recommended for higher performance big blocks or super charged engines
  • Not to be used with a transbrake
  • Engines smaller than 350 cubic inches may not achieve indicated stall speeds

    Choosing a B&M Torque Converter:

    Car Weight: Street rods generally perform better using a 2400 RPM converter even with a mild motor due to the vehicle's light weight. A 2000 RPM converter tends to require too much braking effort when idling but a 2400 RPM unit remains comfortable and efficient.

    Stall Speed: Very mild street cars use a 2000 RPM stall speed unit. Most street-driven performance cars with 350 foot pounds of torque or more need a 2400 RPM unit. Cars with more radical small blocks (500 foot pounds of torque at 4500 RPM or higher) require a 3000 RPM converter. The more torque a motor puts out, the higher the resulting stall speed. Therefore most street performance big blocks would still use a 2400 RPM converter because they generally achieve 2600-2800 RPM. An engine smaller than 350ci might not achieve such stall speeds, which are based on an engine producing 230 foot pounds of torque at 2500 RPM.

    Tork Master vs. Holeshot: Except for supercharged and nitrous engines, Tork Masters are a great value for most small block applications. Holeshots/Nitrous Holeshots should be used for all applications with 450 foot pounds of torque and all blown or nitrous applications. Holeshot converters are furnace-brazed with more sophisticated bearings. Thus they withstand much more torque and horsepower.

  • Does B&M 20402 fit your vehicle?

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    • EngineType: V8 ( 5.7 L / 350 )

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    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

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    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

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    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

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    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1972 GMC C15/C1500 SUBURBAN

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1969 GMC C25/C2500 PICKUP

    • CC: 6489
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1966 PONTIAC CATALINA

    • EngineType: ALL
    • SubModel: 2+2

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    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1972 CHEVROLET KINGSWOOD

    • CC: 7441
    • Liter: 7.4
    • SubModel: ESTATE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1973 CHEVROLET EL CAMINO

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

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    • CC: 6556
    • Liter: 6.6
    • SubModel: SS
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1988 GMC C2500 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1988 GMC C1500 PICKUP

    • EngineType: ALL
    • SubModel: ALL

    1976 GMC C1500 PICKUP

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

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    • SubModel: ALL

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    • SubModel: CHEVY VAN

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    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1970-1971 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • SubModel: ESPRIT
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1979 GMC C2500 PICKUP

    • EngineType: ALL
    • SubModel: SIERRA CLASSIC

    1975 BUICK APOLLO

    • Liter: 5.7
    • SubModel: SR
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1982-1989 GMC G25/G2500 VAN

    • EngineType: ALL
    • SubModel: ALL

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    • CC: 5031
    • Liter: 5.0
    • SubModel: CONCOURS
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1982-1983 CADILLAC FLEETWOOD

    • EngineType: ALL
    • SubModel: BASE

    1970 PONTIAC BONNEVILLE

    • CC: 6555
    • Liter: 6.6
    • SubModel: SAFARI
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )
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