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B&M 20425

Holeshot 3600 Torque Converter 1965-1991 GM TH375, TH400 & TH425

B&M 20425

130-20425

made in usa
jegs shipping
FREE Shipping
Ships 12/12/16 if Ordered Today
B&M 20425 Holeshot 3600 Torque Converter 1965-1991 GM TH375, TH400 & TH425 $504.99
Holeshot 3600 Torque Converter
  • 1965-1991 GM TH375, TH400 & TH425
  • 1968-1981 GM TH350 & TH375B
  • 3400-3800 RPM

  • B&M 20425 Details

    Holeshot 3600 Converters

  • GM

    For 1965-1991 GM TH375, TH400, and TH425
    GM vehicles with variable pitch transmission (some 1965-1967 Buick, Oldsmobile, and Cadillac) must have pump and input shaft changed to fixed pitch design to use B&M converter

    For 1968-1981 TH350 and TH375B

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

  • Specifications:

    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)
    3400-3800
    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
    Yes
    Lockup
    No
    Quantity
    Sold individually
    Manufacturer's Part Number:
    20425

    B&M HoleShot torque converters are designed to improve acceleration and increase drivetrain strength in most street machines. A nice benefit of a Holeshot high stall torque converter is when a higher duration camshaft is used, you can expect improved engine idle while stopped in gear. These high quality balanced torque converters come standard with full furnace brazed impeller and turbine, heavy-duty needle type thrust bearings, and new turbine hubs.

    Note:
  • Not for transbrake applications.
  • Stall speeds may not apply to engines smaller than 350 cubic inches

    Features:
  • Rated up to 600 HP/500Ft-Lbs
  • Furnace brazed impeller and turbine
  • New precision steel pump drive tube
  • Dual pattern drive lugs on some GM HoleShots
  • New turbine hub
  • New springs and rollers in stator
  • New heavy duty needle bearings used instead of thrust washers

    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.

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