10.75-inch bolt circle, 2300-2500 RPM stall
HoleShot 2400 for GM 1965 to 1991 TH400, 425, 375 and 1968 to 1981 TH350, 375B (not 350C) are for serious-minded performance enthusiasts and offer additional strength and durability features not found in our Tork Master or Traveler series of converters. The Holeshot converter is an excellent choice for vehicles with some performance engine modifications, particularly big cams that tend to reduce low-end power and torque. The higher stall speed of this converter will launch the car in a higher rpm range where more torque is readily available, resulting in quicker acceleration. Holeshot converters feature furnace brazed impeller fins and turbine, new precision alloy impeller hub and new heavy duty needle bearings. Other features include fully balanced and pressure tested by expert technicians. If your vehicle is equipped with a plate type nitrous system or supercharger, please refer to the Nitrous Holeshot line of converters. Notes: Stall speed listings are based on engines producing 230lb. ft. of torque at 2,500 rpm. More torque at 2,500 rpm will give you more stall speed, less torque at 2,500 rpm will give you less stall speed than the stall speed ratings indicated. Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. This converter is Not recommended for supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product. 10.75-inch bolt circle.
  • Race Proven Technology & Quality
  • Heavy Duty Needle Bearings
  • Precision Balanced on Certified Balance Equipment
  • Copper Furnace Brazed Impeller and Turbine
  • New Precision Alloy Steel Impeller Hub

Information:

Fits GM 1965-91 TH400, 425, 375 and 1968-81 TH350, 375B (not 350C) automatic transmissions. Requires small 10.75-inch bolt circle flexplate

Application Summary:

Year Make/Model
1965-1985 Avanti II
1985-1990 Bentley Continental
1971-1980 Bentley Corniche
1982-1984 Bentley Corniche
1984 Bentley Eight
1986-1991 Bentley Eight
1981-1991 Bentley Mulsanne
1968-1976 Bentley T1 Series
1977-1980 Bentley T2 Series
1988-1990 Bentley Turbo R
1973-1975 Buick Apollo
1971-1973 Buick Centurion
1973-1981 Buick Century
1964-1967 Buick Electra
1973 Buick Electra
1975-1981 Buick Electra
1970-1981 Buick Estate Wagon
1965-1967 Buick Gran Sport
1970-1972 Buick GS
1964-1981 Buick LeSabre
1973-1981 Buick Regal
1964-1978 Buick Riviera
1975-1980 Buick Skyhawk
1965-1967 Buick Skylark
1969-1972 Buick Skylark
1975-1979 Buick Skylark
1965-1967 Buick Special
1969 Buick Special
1966-1972 Buick Sportwagon
1964-1969 Buick Wildcat
1987-1990 Cadillac Brougham
1965-1976 Cadillac Calais
1964-1983 Cadillac Commercial Chassis
1965-1981 Cadillac DeVille
1964-1979 Cadillac Eldorado
1965-1984 Cadillac Fleetwood
1964 Cadillac Series 60 Fleetwood
1964 Cadillac Series 62
1964 Cadillac Series 75 Fleetwood
1976-1978 Cadillac Seville
1975-1982 Checker Marathon
1969-1974 Checker Taxicab
1965-1975 Chevrolet Bel Air
1965-1972 Chevrolet Biscayne
1969-1974 Chevrolet Blazer
1987-1990 Chevrolet Blazer
1969 Chevrolet Brookwood
1972 Chevrolet Brookwood
1975-1986 Chevrolet C10
1967-1984 Chevrolet C10 Suburban
1988-1990 Chevrolet C1500
1975-1986 Chevrolet C20
1967-1986 Chevrolet C20 Suburban
1988-1992 Chevrolet C2500
1975-1986 Chevrolet C30
1988-1990 Chevrolet C3500
1967-1981 Chevrolet Camaro
1966-1972 Chevrolet Caprice
1975-1980 Chevrolet Caprice
1966 Chevrolet Chevelle
1968 Chevrolet Chevelle
1970-1972 Chevrolet Chevelle
1966-1967 Chevrolet Chevy II
1967-1980 Chevrolet Corvette
1965-1980 Chevrolet El Camino
1975-1990 Chevrolet G10
1975-1990 Chevrolet G20
1969-1974 Chevrolet G20 Van
1975-1990 Chevrolet G30
1965-1980 Chevrolet Impala
1975-1986 Chevrolet K10
1967-1984 Chevrolet K10 Suburban
1988-1990 Chevrolet K1500
Attributes
ASIN B000CIID4U
Additional Contents New needle bearings, New needle bearings
Automotive Item Grade High Performance, High Performance
Bolt Circle Diameter 10.750 in.
Bolt Circle Diameter (in) 10.75, 10.75
Bolt Circle Diameter (in.) 10.75
Brand B&M, B&M
Bullet Point #1 Furnace Brazed Impeller
Bullet Point #2 Steel alloy pump Drive tube
Bullet Point #3 Heavy Duty Needle Bearing
Bullet Point #4 Between Stator and Turbine
California Proposition 65 No
Category Transmission
Country of Origin (Primary) US
Emission Code 5, 5
Flexplate Change Needed Yes, Yes
Furnace Brazed Yes, Yes
Furnace-Brazed Yes
GTIN 00792899202411
Grade Type Performance
Harmonized Tariff Code (Schedule B) 8483401000
Hazardous Material Code N
Input Spline 30, 30
Life Cycle Status Code Available to Order
Lock Up Type No
Long Description Holeshot 2400 Torque Converter
Material Steel, Steel
NAFTA Preference Criterion Code B
Part Type Automatic Transmission Torque Converter
Product Type Automatic Transmission Torque Converter, Automatic Transmission Torque Converter
SDR Required Flag N
SDS Sheet Number N
Sale Category Transmission and Drivetrain
Short Description Torque Converter
Spline Quantity 30
Stall 2,300-2,500, 2300-2500
Stall Speed 2,300-2,500, 2,300-2,500
Stall Speed (RPM) 2300-2500
Stall Speed RPM 2300-2500
Stall Torque Ratio 2300 to 2500 RPM stall, 2,300 to 2,500 RPM stall
Standard Pack 1
Sub Category Transmission Hard Parts
Trans Model GM- TH350 (Auto)3 Speed, GM- TH375 (Auto)3 Speed, GM- TH375B (Auto)3 Speed, GM- TH400 (Auto)3 Speed, GM- TH425 (Auto)3 Speed
Trans Year 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991
Transmission TH350, TH375
Warranty Time 12

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B&M 20412 B&M Holeshot 2400 Torque Converter, 1965-91 GM TH400, 1968-81 TH350

Product Information

  • Brand: B&M
  • Product Number: 20412

Tags: 20412, Torque Converter, B/M, b and m, transmission, manual, automatic, shift kit, improver, transkit, racing, knob, lever, torque converter