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B&M 20482 Nitrous Holeshot Torque Converter GM - 3600 TH350 TH400 TH425

(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 20481

Manufacturer

Picture for manufacturer B&M

Part Number

20482
18 reviews
Sale Price

$799.95

In Stock (10)

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Usually delivered within 2 days

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Product Details

The B&M Nitrous Holeshot 3600 Torque Converter is engineered specifically for high-performance street vehicles equipped with nitrous oxide systems or modified engines. Designed to handle up to 650 horsepower, this converter represents the strongest option in B&M's street converter lineup, capable of withstanding the instant power delivery that nitrous plate systems produce.

This high-stall converter features a 3400-3800 RPM stall range, allowing engines to launch at higher RPM where maximum torque is available. This is particularly beneficial for vehicles with large camshafts that reduce low-end power, as the higher stall speed compensates for reduced torque at lower engine speeds and delivers quicker acceleration from a standstop.

Premium Construction Features:

  • Furnace brazed impeller and turbine for maximum strength and durability
  • Anti-balloon plates to withstand instant horsepower surges from nitrous systems
  • Precision steel alloy pump drive tube for enhanced reliability
  • Heavy-duty needle bearings between stator and impeller (not thrust washers)
  • Needle bearings between stator and turbine for reduced friction
  • New turbine hub, springs, and rollers in the stator
  • Dual pattern bolt circle: 10-inch, 10.75-inch, and 11.50-inch compatibility
  • Fully balanced and pressure tested for smooth operation

Application Notes: Fits 1965-1991 GM TH400, TH425, and TH350 transmissions, as well as 1968-1981 GM TH350 and TH375B transmissions. Does not fit TH350C models with locking torque converter. Not compatible with trans-brake applications. B&M recommends installing a supplementary transmission cooler to manage the additional heat generated by higher stall speeds.

Note: Actual stall speed may vary based on engine torque output, gear ratio, and vehicle weight. Stall ratings are based on engines producing 230 lb-ft of torque at 2500 RPM.

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

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

3400-3800

Stall Speed

3,400-3,800

Stall Torque Ratio

3400 to 3800 RPM stall

Sub Category

Transmission Hard Parts

Torque Converter Series

Nitrous Holeshot

Transmission

TH425

Transmission

TH350

Transmission

TH375

Transmission

TH375B

Transmission

TH400

Transmission Model

TH400, TH425, TH375, TH350

Have What I need

Great price for this product!

Good prices.

Great value and fast delivery. The tire arrived slightly crushed from weight which possibly occurred during shipping. The out-of-round quickly went away after approximately 20 miles of driving. I'm very impressed with the great price and delivery time. Thanks again.

Very easy and smooth

Easy to work with order and check out.

Thanks for the quick delivery and affordability

Excellent service. Received what I ordered sooner than anticipated.

Fast shipping, good prices.

they had the parts i needed and ordering was fast and easy. great job guys,and thanks.

fast shipping and great communication my order was shipped the same day thanks autoplicity

great

was searching for a hard to find part and they had it on the shelf. fast shipping, will definitly buy from again. cost was even cheaper with shipping!

They have hard-to-find items that ship immediately, excellent turn-around time on the orders. I look here first.

I ordered thermo tec express sleeve heat suppression for my honda s2000 through autoplicity.<br><br>I ordered it on 07/06/2012 and recieved a day later,very fast processing. Order came well packaged and competitive pricing.

Great Company, fair prices and excellent web site.

Great price,fast shipping.Completely satisfied!

Price was unbeatable and the shipping was fast. Top notch reseller.

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