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B&M 20480 Nitrous Holeshot 2400 RPM Stall Torque Converter

(GMC G2500 1979-91, Sonoma 1991, K1500 1979-91, C1500 1979-91, K2500 1979-91, Jimmy 1970-91, C3500 1979-91, K2500 Suburban 1979-86 + 304 more models)

Part of: B&M Nitrous Holeshot Torque Converter GM

Other options in this family: B&M 20484 B&M 20482 B&M 20481

Manufacturer

Picture for manufacturer B&M

Part Number

20480
13 reviews
Sale Price

$649.95

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The B&M Nitrous Holeshot 2400 RPM torque converter is engineered for high-performance street and strip applications requiring quick launch capabilities. Designed specifically for nitrous-equipped vehicles, this converter delivers a 2400 RPM stall speed to maximize acceleration off the line while maintaining reliability under extreme conditions.

Key Features:

  • 2400 RPM stall speed for aggressive launches and quicker acceleration
  • Steel alloy pump drive tube for enhanced durability under high-stress conditions
  • Furnace brazed impeller and turbine construction for maximum strength
  • Anti-balloon plate provides added reinforcement to prevent case distortion at high RPM
  • Needle bearing between stator and turbine reduces friction and improves efficiency
  • Fully balanced and pressure tested to ensure smooth operation
  • Compatible with 1965-91 GM TH400/425 and 1968-81 TH350/375B transmissions

Built with B&M's legendary quality and durability, this torque converter is ideal for vehicles running nitrous oxide systems where instant power delivery and high stall speeds are critical for performance. The robust construction ensures reliable operation in demanding racing environments while providing the responsiveness needed for competitive quarter-mile times.

Products specifications

Fits

GMC G2500 1979-91, Sonoma 1991, K1500 1979-91, C1500 1979-91, K2500 1979-91, Jimmy 1970-91, C3500 1979-91, K2500 Suburban 1979-86, K3500 1979-91, C15/C1500 Pickup 1966-74, Safari 1985-91, C2500 1979-91, K1500 Suburban 1979-86 + 299 more models

Furnace-Brazed

Yes

Title

B&M 20480 Torque Converter, Nitrous Holeshot 2400

Prop 65

No

Trans Year

1979

Trans Year

1980

Trans Year

1981

Trans Year

1982

Trans Year

1983

Trans Year

1984

Trans Year

1985

Trans Year

1966

Trans Year

1974

Trans Year

1968

Trans Year

1971

Trans Year

1973

Stall Speed (RPM)

2300-2500

Trans Year

1976

Trans Year

1978

Trans Model

GM- TH400 (Auto) 3 Speed

Trans Model

GM- TH375B (Auto) 3 Speed

Trans Year

1969

Trans Year

1965

Bolt Circle Diameter

10.750 in.

Trans Year

1977

Trans Year

1970

Trans Model

GM- TH425 (Auto) 3 Speed

Trans Year

1972

Trans Model

GM- TH350 (Auto) 3 Speed

Trans Year

1975

Trans Year

1967

Additional Contents

New needle bearings

Anti-Balloon Plate

Yes

Automotive Item Grade

High Performance

Bolt Circle Diameter (in)

10.75

Brand

B&M

Category

Transmission

Crank Pilot Diameter (in)

1.71

Emission Code

5

Flexplate Change Needed

No

Grade Type

Performance

Input Spline

30

Lock Up Type

No

Lockup

No

Material

Steel

Mounting Studs

No

Product Type

Automatic Transmission Torque Converter

Spline Quantity

30

Stall

2300-2500

Stall Speed

2,300-2,500

Stall Torque Ratio

2300 to 2500 RPM stall

Sub Category

Transmission Hard Parts

Torque Converter Series

Nitrous Holeshot

Transmission

TH375

Transmission

TH425

Transmission

TH375B

Transmission

TH350

Transmission

TH400

Transmission Model

TH400, TH425, TH375, TH350

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Excellent

It was easy ordering. Only place that had the part i was looking for. Price was also good

Thanks

Quick and easy

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A very good price on items. Very quick response and delivery. Thanks

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