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B&M 20413 - B&M Holeshot Torque Converters



B&M 20413 - B&M Holeshot Torque Converters
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JEGS Part Number: 130-20413

Holeshot 3000 Torque Converter
  • 1965-91 GM TH375, TH400 & TH425
  • 1968-81 GM TH350 & TH375B
  • 2800-3200 RPM
  • $484.77
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    B&M 20413 - B&M Holeshot Torque Converters Details

    Holeshot 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

  • Specifications:

    Diameter (in.)
    10.
    Trans Year
    1965
    Trans Year
    1966
    Trans Year
    1967
    Trans Year
    1968
    Trans Year
    1969
    Trans Year
    1970
    Trans Year
    1971
    Trans Year
    1972
    Trans Year
    1973
    Trans Year
    1974
    Trans Year
    1975
    Trans Year
    1976
    Trans Year
    1977
    Trans Year
    1978
    Trans Year
    1979
    Trans Year
    1980
    Trans Year
    1981
    Trans Year
    1982
    Trans Year
    1983
    Trans Year
    1984
    Trans Year
    1985
    Trans Year
    1986
    Trans Year
    1987
    Trans Year
    1988
    Trans Year
    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
    Hardware Included
    Yes
    Anti-Ballooning Plate
    No
    Balanced
    Yes
    Furnace-Brazed
    Yes
    Lockup
    No
    Quantity
    Sold individually
    Manufacturer's Part Number:
    20413

    B&M Holeshot Torque Converter are designed with a higher-than-stock stall speed that is beneficial to vehicles with modified engines. Big cam modifications, for example, tend to reduce low end power and torque so using a high-stall converter allows an engine to launch a car at a higher RPM where more torque is available. B&M Holeshot Converters feature a furnace-brazed impeller and turbine, new turbine hub, new alloy steel pump drive tube, new heavy-duty needle bearing between stator and turbine (not a thrust washer), new springs and rollers in stator, and dual pattern drive lugs on some GM torque converters. Holeshots, which are also available in a Nitrous Series, are generally good for street machines that crave better launch capability and more tractability and street rods with modified engines. They are not for transbrake applications.

    RPM ranges for B&M Holeshot Torque Converters:
  • Holeshot 2000: 1900-2100 RPM
  • Holeshot 2400: 2300-2500 RPM
  • Holeshot 3000: 2800-3200 RPM
  • Holeshot 3600: 3400-3800 RPM

    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.

    Features:
  • Furnace brazed impeller
  • New precision steel alloy pump drive tube
  • New heavy duty needle bearing between stator and impeller (not a thrust washer)
  • Needle bearing between stator and turbine
  • Furnace brazed turbine
  • Dual pattern drive lugs on some GM Holeshots
  • New turbine hub
  • New springs and rollers in stator

  • Does this fit your vehicle?

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