My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

B&M Nitrous Holeshot Torque Converter GM

(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)

Manufacturer

Picture for manufacturer B&M

Part Number

4 part numbers · from $649.95
7 reviews
Sale Price

from $649.95

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Select Your Vehicle:

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The B&M Nitrous Holeshot torque converter is a performance automatic transmission torque converter for GM applications. It is built for engines with big cams and other modifications that cut low-end power and torque, and for nitrous-equipped engines. A higher stall speed helps the engine reach its powerband sooner, so the vehicle accelerates harder off the line. Several stall speed options are available in the product line.

Key Features:

  • Designed for nitrous applications, with anti-balloon plates that help the converter hold up to the sudden power delivery of nitrous
  • Furnace-brazed impeller and turbine
  • Fully balanced and pressure tested
  • Needle bearing between the stator and turbine
  • Steel alloy pump drive tube
  • Dual-pattern bolt circle for flexibility when matching your flexplate
  • Non-lockup design for GM automatic transmissions
  • Made in the USA by B&M

B&M's Nitrous Holeshot line suits street/strip and drag racing builds. It gives you a stronger, higher-stalling converter for a modified GM automatic transmission. Choose the child item whose stall speed and application match your engine and transmission.

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

Select yours to see vehicle-specific options.

Select & Customize

4 items

Picture of B&M 20484 Nitrous Holeshot 3500 RPM Torque Converter GM TH400/425/350 Picture of B&M 20484 Nitrous Holeshot 3500 RPM Torque Converter GM TH400/425/350 Picture of B&M 20484 Nitrous Holeshot 3500 RPM Torque Converter GM TH400/425/350 Picture of B&M 20484 Nitrous Holeshot 3500 RPM Torque Converter GM TH400/425/350 Picture of B&M 20484 Nitrous Holeshot 3500 RPM Torque Converter GM TH400/425/350
B&M 20484 Nitrous Holeshot 3500 RPM Torque Converter GM TH400/425/350
Transmission
Description
Specifications
Additional ContentsNew needle bearings
Anti Balloon PlateYes
Anti-Balloon PlateYes
Automotive Item GradeHigh Performance
Bolt Circle Diameter10.750 in./11.500 in.
Bolt Circle Diameter (in)10.75
BrandB&M
California Proposition 65 RequiredNo
CategoryTransmission
Crank Pilot Diameter1.710 in.
Crank Pilot Diameter (in)1.71
Emission Code5
FlexPlate Bolt Circle10-3/4", 11-1/2"
Flexplate Change NeededNo
Furnace BrazedYes
Grade TypePerformance
Input Spline30
Lock Up TypeNo
LockupNo
Lockup TypeNo
MaterialSteel
Mounting StudNo
Mounting StudsNo
Package ContentsTorque Converter, Mounting Hardware
Product TypeAutomatic Transmission Torque Converter
Spline Quantity30
Stall3200-3500
Stall Speed3,200-3,500
Stall Speed (RPM)3200-3500
Sub CategoryTransmission Hard Parts
Torque Converter SeriesNitrous Holeshot
Trans ModelGM- TH375 (Auto) 3 Speed
Trans ModelGM- TH400 (Auto) 3 Speed
Trans ModelGM- TH425 (Auto) 3 Speed
Trans ModelGM- TH350 (Auto) 3 Speed
TransmissionTH375
TransmissionTH425
TransmissionTH400
TransmissionTH350
Transmission ModelTH400, TH425, TH375, TH350
WARNING CA Proposition 65No
$675.95
PART NUMBER: 20484
In Stock (10+)
Usually delivered within 2 days
Picture of B&M 20480 Nitrous Holeshot 2400 RPM Stall Torque Converter Picture of B&M 20480 Nitrous Holeshot 2400 RPM Stall Torque Converter Picture of B&M 20480 Nitrous Holeshot 2400 RPM Stall Torque Converter Picture of B&M 20480 Nitrous Holeshot 2400 RPM Stall Torque Converter Picture of B&M 20480 Nitrous Holeshot 2400 RPM Stall Torque Converter Picture of B&M 20480 Nitrous Holeshot 2400 RPM Stall Torque Converter Picture of B&M 20480 Nitrous Holeshot 2400 RPM Stall Torque Converter
B&M 20480 Nitrous Holeshot 2400 RPM Stall Torque Converter
Transmission
Description
Specifications
Additional ContentsNew needle bearings
Anti-Balloon PlateYes
Automotive Item GradeHigh Performance
Bolt Circle Diameter10.750 in.
Bolt Circle Diameter (in)10.75
BrandB&M
California Proposition 65 RequiredNo
CategoryTransmission
Crank Pilot Diameter (in)1.71
Emission Code5
Flexplate Change NeededNo
Furnace BrazedYes
Furnace-BrazedYes
Grade TypePerformance
Input Spline30
Lock Up TypeNo
LockupNo
MaterialSteel
Mounting StudsNo
Product TypeAutomatic Transmission Torque Converter
Spline Quantity30
Stall2300-2500
Stall Speed2,300-2,500
Stall Speed (RPM)2300-2500
Stall Torque Ratio2300 to 2500 RPM stall
Sub CategoryTransmission Hard Parts
TitleB&M 20480 Torque Converter, Nitrous Holeshot 2400
Torque Converter SeriesNitrous Holeshot
Trans ModelGM- TH400 (Auto) 3 Speed
Trans ModelGM- TH375B (Auto) 3 Speed
Trans ModelGM- TH425 (Auto) 3 Speed
Trans ModelGM- TH350 (Auto) 3 Speed
Trans Year1979
Trans Year1980
Trans Year1981
Trans Year1982
Trans Year1983
Trans Year1984
Trans Year1985
Trans Year1966
Trans Year1974
Trans Year1968
Trans Year1971
Trans Year1973
Trans Year1976
Trans Year1978
Trans Year1969
Trans Year1965
Trans Year1977
Trans Year1970
Trans Year1972
Trans Year1975
Trans Year1967
TransmissionTH375
TransmissionTH425
TransmissionTH375B
TransmissionTH350
TransmissionTH400
Transmission ModelTH400, TH425, TH375, TH350
WARNING CA Proposition 65No
$649.95
PART NUMBER: 20480
In Stock (10+)
Usually delivered within 2 days
Picture of B&M 20482 Nitrous Holeshot Torque Converter GM - 3600 TH350 TH400 TH425 Picture of B&M 20482 Nitrous Holeshot Torque Converter GM - 3600 TH350 TH400 TH425 Picture of B&M 20482 Nitrous Holeshot Torque Converter GM - 3600 TH350 TH400 TH425 Picture of B&M 20482 Nitrous Holeshot Torque Converter GM - 3600 TH350 TH400 TH425 Picture of B&M 20482 Nitrous Holeshot Torque Converter GM - 3600 TH350 TH400 TH425 Picture of B&M 20482 Nitrous Holeshot Torque Converter GM - 3600 TH350 TH400 TH425 Picture of B&M 20482 Nitrous Holeshot Torque Converter GM - 3600 TH350 TH400 TH425
B&M 20482 Nitrous Holeshot Torque Converter GM - 3600 TH350 TH400 TH425
Transmission
Description
Specifications
Additional ContentsNew needle bearings
Anti-Balloon PlateYes
Automotive Item GradeHigh Performance
Bolt Circle Diameter10.750 in.
Bolt Circle Diameter (in)10.75
BrandB&M
California Proposition 65 RequiredNo
CategoryTransmission
Crank Pilot Diameter (in)1.71
Emission Code5
Flexplate Change NeededNo
Furnace BrazedYes
Furnace-BrazedYes
Grade TypePerformance
Input Spline30
Lock Up TypeNo
LockupNo
MaterialSteel
Mounting StudsNo
Product TypeAutomatic Transmission Torque Converter
Spline Quantity30
Stall3400-3800
Stall Speed3,400-3,800
Stall Speed (RPM)3400-3800
Stall Torque Ratio3400 to 3800 RPM stall
Sub CategoryTransmission Hard Parts
TitleB&M 20482 Torque Converter, Nitrous Holeshot 3600
Torque Converter SeriesNitrous Holeshot
Trans ModelGM- TH375 (Auto) 3 Speed
Trans ModelGM- TH400 (Auto) 3 Speed
Trans ModelGM- TH375B (Auto) 3 Speed
Trans ModelGM- TH425 (Auto) 3 Speed
Trans ModelGM- TH350 (Auto) 3 Speed
Trans Year1979
Trans Year1980
Trans Year1981
Trans Year1982
Trans Year1983
Trans Year1984
Trans Year1985
Trans Year1986
Trans Year1987
Trans Year1988
Trans Year1989
Trans Year1990
Trans Year1991
Trans Year1966
Trans Year1974
Trans Year1968
Trans Year1971
Trans Year1973
Trans Year1976
Trans Year1978
Trans Year1969
Trans Year1965
Trans Year1977
Trans Year1970
Trans Year1972
Trans Year1975
Trans Year1967
TransmissionTH425
TransmissionTH350
TransmissionTH375
TransmissionTH375B
TransmissionTH400
Transmission ModelTH400, TH425, TH375, TH350
WARNING CA Proposition 65No
$799.95
PART NUMBER: 20482
In Stock (10)
Usually delivered within 2 days
Picture of B&M 20481 Nitrous Holeshot 3000 Torque Converter for GM TH400/425 Picture of B&M 20481 Nitrous Holeshot 3000 Torque Converter for GM TH400/425 Picture of B&M 20481 Nitrous Holeshot 3000 Torque Converter for GM TH400/425 Picture of B&M 20481 Nitrous Holeshot 3000 Torque Converter for GM TH400/425 Picture of B&M 20481 Nitrous Holeshot 3000 Torque Converter for GM TH400/425 Picture of B&M 20481 Nitrous Holeshot 3000 Torque Converter for GM TH400/425 Picture of B&M 20481 Nitrous Holeshot 3000 Torque Converter for GM TH400/425
B&M 20481 Nitrous Holeshot 3000 Torque Converter for GM TH400/425
Transmission and Drivetrain
Description
Specifications
Additional ContentsNew needle bearings
Anti-Balloon PlateYes
Automotive Item GradeHigh Performance
Bolt Circle Diameter10.750 in.
Bolt Circle Diameter (in)10.75
BrandB&M
California Proposition 65 RequiredNo
CategoryTransmission and Drivetrain
Crank Pilot Diameter (in)1.71
Emission Code5
Flexplate Change NeededNo
Furnace BrazedYes
Furnace-BrazedYes
Grade TypePerformance
Input Spline30
Lock Up TypeNo
LockupNo
MaterialSteel
Mounting StudsNo
Product TypeAutomatic Transmission Torque Converter
Spline Quantity30
Stall2800-3200
Stall Speed2,800-3,200
Stall Speed (RPM)2800-3200
Stall Torque Ratio2800 to 3200 RPM stall
TitleB&M 20481 Torque Converter, Nitrous Holeshot 3000
Torque Converter SeriesNitrous Holeshot
Trans ModelGM- TH375 (Auto) 3 Speed
Trans ModelGM- TH400 (Auto) 3 Speed
Trans ModelGM- TH375B (Auto) 3 Speed
Trans ModelGM- TH425 (Auto) 3 Speed
Trans ModelGM- TH350 (Auto) 3 Speed
Trans Year1979
Trans Year1980
Trans Year1981
Trans Year1982
Trans Year1983
Trans Year1984
Trans Year1985
Trans Year1986
Trans Year1987
Trans Year1988
Trans Year1989
Trans Year1990
Trans Year1991
Trans Year1966
Trans Year1974
Trans Year1968
Trans Year1971
Trans Year1973
Trans Year1976
Trans Year1978
Trans Year1969
Trans Year1965
Trans Year1977
Trans Year1970
Trans Year1972
Trans Year1975
Trans Year1967
TransmissionTH375
TransmissionTH425
TransmissionTH375B
TransmissionTH350
TransmissionTH400
Transmission ModelTH400, TH425, TH375, TH350
WARNING CA Proposition 65No
$949.95
PART NUMBER: 20481
In Stock (8)
Usually delivered within 2 days

Select & Customize

It was good.

User friendly site and fast shipping!

Easy to order.

Good

Easy to order

Great price with excellent service. I would highly recommend your company!

100% perfect all around, i will purchase from them again !!

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy