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B&M 20402 - B&M Tork Master Converters

B&M 20402 - B&M Tork Master Converters

B&M#130-20402

Tork Master 3000 Converter
  • GM 1965-91 TH375, TH400 & TH425
  • GM 1968-81 TH350 and TH375B
    • Fits Applications:
    • 1964-1981
      BUICK
      1965-1984
      CADILLAC
      1987-1990
      CADILLAC
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    B&M 20402 - B&M Tork Master Converters Details

    Tork Master 3000 Converters

  • GM

    For 1965-91 GM TH375, TH400, and TH425
    GM vehicles with variable pitch transmission (some 1965-67 Buick, Oldsmobile, and Cadillac) must have pump and input shaft changed to fixed pitch design to use B&M converter

    For 1968-81 TH350 and TH375B

  • Does not fit TH350C
  • Does not fit lock-up converter or clutch converter models

  • B&M 20402 - B&M Tork Master Converters


    Low Price, High Quality, Fully Balanced, and Pressure Tested


    The best value-priced converters available, B&M Tork Masters perform similarly to B&M's Holeshot Series. They are excellent, all-around performance street torque converter with a new alloy steel pump drive tube, needle thrust bearing when factory equipped, and thrust washer between turbine and cover when required. Tork Masters are not to be used in transbrake applications or with big blocks.

    Ranges are for small block, mild performance applications:

  • Tork Master 2000 1900-2100 RPM
  • Tork Master 2400 2300-2500 RPM
  • Tork Master 3000 2800-3200 RPM

    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.

  • B&M 130-20402

    Trans Year
    1965
    Trans Year
    1966
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    1967
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    1968
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    1969
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    1970
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    1971
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    1972
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    1973
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    1974
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    1975
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    1976
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    1977
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    1978
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    1979
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    1980
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    1981
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    1982
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    1983
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    1984
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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
    Trans Year
    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
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