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B&M 20481 Nitrous Holeshot 3000 Torque Converter GM TH350 TH400 2800-3200 Stall

B&M 20481 Nitrous Holeshot 3000 Torque Converter GM TH350 TH400 2800-3200 Stall

Regular price $766.95 USD
Regular price Sale price $766.95 USD
Sale Sold out
B&M Racing Part Number : 20481

Fits GM 1965-91 TH400, 425, 375 and 1968-81 TH350, 375B (not 350C) automatic transmissions. Requires  10.75" or a 11.50" bolt circle flexplate

Please contact us before purchasing , if you are not 100% sure of fitment

B&M Nitrous HoleShot 3000 stall for 1965-91 TH400, 425 and 1968-81 TH350, 375 transmissions (Not TH350C) is an excellent choice for vehicles with 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. Nitrous Holeshot converters feature furnace brazed impeller and turbine, new precision steel alloy pump drive tube, new heavy duty needle bearings between the stator and impeller (not a thrust washer) and needle bearings between the stator and turbine. Other features include dual pattern 10.75 and 11.50-inch bolt circle, a new turbine hub, new springs and rollers in the stator and anti-balloon plates. The anti-balloon plates will allow these converters to stand up to the instant horsepower that a nitrous plate system delivers. 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. These are serious converters for serious performance street cars. To prevent contamination left from worn parts being circulated in your new components causing premature wear, we strongly recommend protecting your investment by adding a B&M transmission cooler with all new transmission installations. Listed converters are NOT to be used in trans-brake applications. Not for use in trans-brake applications. Has both 10.75 and 11.50-inch bolt circles.

Features:

  • Needle Bearing Between Stator and Turbine
  • Higher Stall Speed, Quicker Acceleration
  • Anti-balloon Plate for Added Strength
  • Furnace Brazed Impeller and Turbine
  • Fully Balanced and Pressure Tested
  • Steel Alloy Pump Drive Tube
  • B&M Quality & Durability
Additional Contents New needle bearings
Anti-Balloon Plate Yes
Automotive Item Grade High Performance
Bolt Circle Diameter (in) 10.75" or a 11.50" bolt circle flexplate
Brand B&M
Crank Pilot Diameter (in) 1.71
Emission Code 5
Flexplate Change Needed No
Furnace Brazed Yes
Input Spline 30
Lockup No
Material Steel
Mounting Studs No
Product Type Automatic Transmission Torque Converter
Stall 2800-3200
Stall Speed 2800-3200
Stall Torque Ratio 2800 to 3200 RPM stall
Torque Converter Series Nitrous Holeshot
Transmission TH350

TH375

TH375B

TH400

TH425
Transmission Model TH400, TH425, TH375, TH350
UPC 019695204815
California Proposition 65 Required No
Part Number 20481






















































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