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B&M 20481 Nitrous Holeshot 3000 Torque Converter for GM TH400/425

(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 + 323 more models)

Part of: B&M Nitrous Holeshot Torque Converter GM

Other options in this family: B&M 20484 B&M 20480 B&M 20482

Manufacturer

Picture for manufacturer B&M

Part Number

20481
16 reviews
Sale Price

$949.95

In Stock (8)

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Usually delivered within 2 days

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Product Details

The B&M Nitrous Holeshot 3000 Torque Converter is engineered for high-performance street and strip applications requiring a 3,000 RPM stall speed. Designed specifically for 1965-1991 GM TH400 and TH425 transmissions, this converter delivers the hard-launching capability needed for nitrous-equipped vehicles and high-horsepower builds.

Key Features:

  • 3,000 RPM stall speed for aggressive launches and quicker acceleration
  • Steel alloy pump drive tube for maximum strength and durability
  • Furnace brazed impeller and turbine ensure structural integrity under extreme conditions
  • Anti-balloon plate provides added strength to prevent distortion at high RPM
  • Needle bearing between stator and turbine reduces friction and heat
  • Fully balanced and pressure tested for reliability
  • Built with B&M's legendary quality standards for street and racing use

This torque converter is ideal for vehicles running nitrous oxide systems, forced induction, or naturally aspirated engines with aggressive camshafts. The higher stall speed allows the engine to build boost or reach its power band before the vehicle launches, resulting in improved 60-foot times and overall performance. Compatible with TH400 and TH425 (front-wheel drive variant) transmissions from 1965 to 1991.

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, 1979-83, Safari 1985-91, C2500 1979-91 + 319 more models

Additional Contents

New needle bearings

Anti-Balloon Plate

Yes

Automotive Item Grade

High Performance

Bolt Circle Diameter (in)

10.75

Brand

B&M

Prop 65

No

Category

Transmission and Drivetrain

Crank Pilot Diameter (in)

1.71

Emission Code

5

Flexplate Change Needed

No

Furnace Brazed

Yes

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

2800-3200

Stall Speed

2,800-3,200

Stall Torque Ratio

2800 to 3200 RPM stall

Torque Converter Series

Nitrous Holeshot

Transmission

TH375

Transmission

TH425

Transmission

TH375B

Transmission

TH350

Transmission

TH400

Transmission Model

TH400, TH425, TH375, TH350

Thanks

Great product info and fast shipping!

Best prices and in stock for Borg Warner anywhere. Thank you!

hard to find part found here.

easy so far.. now we'll see if it get here 2 days.... thank you

Website is friendly to mobile devices. Fast and confident shopping

Parts have not been put on yet will contact on how it goes

Great product value

Prompt delivery... brand name quality parts at a very reasonable price.

Ordered a sling to store my roof rack. There was an issue with the supplier which was quickly resolved by the Autoplicity staff. Great customer service -- most responsive I've ever seen.<br><br>Best prices around.

Super easy to browse web site and find the product I wanted.<br>The price was unmatched.<br>Shipping was fast and cheap.<br>Super shopping experience.

Great prices, helpful customer service. Ordered 2 by mistake. And they got it cleared up real fast. Saved over $80 off retail. Will be ordering from the, again!!!!! <br>

Autoplicity has an abundance of name brand parts at unbeatable prices. Customer service was also great to deal with. Receipt and tracking info was provided promptly.

Rather amazing and uneventful service in this day and age. Ordered a Thule bike rack for my Nissan Murano. It was in stock (unusual for high-end specialty products), shipped the next day, and was on my doorstep in a few days (excellent for a 60 lb. large box). I'd buy anything from these people without any reservation. AND, your order is insured - completely superfluous. Oh, and did I mention, the lowest price I could find ANYWHERE, and not by a few dollars - a lot.

Excellent service with the actual stock on hand, shipment was made the next day and a tracking number was provided. I have tried 2 other online supply stores which don't know what they have in stock.

So far, extremely easy to Submit orders

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