B&M Nitrous Holeshot 3800 Torque Converter 20485
B&M Nitrous Holeshot 3800 Torque Converter 20485 B&M Nitrous Holeshot 3800 Torque Converter 20485 B&M Nitrous Holeshot 3800 Torque Converter 20485 B&M Nitrous Holeshot 3800 Torque Converter 20485 B&M Nitrous Holeshot 3800 Torque Converter 20485 B&M Nitrous Holeshot 3800 Torque Converter 20485 B&M Nitrous Holeshot 3800 Torque Converter 20485 B&M Nitrous Holeshot 3800 Torque Converter 20485 B&M Nitrous Holeshot 3800 Torque Converter 20485 B&M Nitrous Holeshot 3800 Torque Converter 20485

B&M Nitrous Holeshot 3800 Torque Converter 20485

$625.99 ea
Model:3998157
Condition: REMAN
Availability:
ARRIVING SOON!
Estimated arrival: 08/24/2021 (If Ordered Today)
65 available from HOLLEY PERFORMANCE PRODUCTS as of 08/05/2021
Fitment:
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
Shipping Note:Standard Delivery
Qty:

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Disclaimer

Muscle Cars & Classics always recommends professional installation of our products. Buyer assumes risk of damage caused by improper installation.

B&M Nitrous HoleShot 3800 stall for GM 1965 to 1991 TH400, TH425, TH375 and 1968 to 1981 TH350, TH375B (not TH350C.) The Nitrous Holeshot 3800 stall converter 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 drive lugs, 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 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.
Features:
  • Furnace Brazed Impeller
  • Steel Alloy Pump Drive Tube
  • Heavy Duty Needle Bearing
  • Between Stator and Turbine
  • Furnace Brazed Turbine
  • New Turbine Hub
  • New Springs/Rollers In Stator
Holley Performance Emission Code 5: This part is legal for sale or use on Emissions Controlled Vehicles; Uncontrolled (Non-Emissions Controlled) Vehicles; and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations
Installation Notes:
Fits vehicles with GM TH400, TH425, TH375 & TH350, TH375B (Not TH350C) Automatic Transmissions

Downloads:

Download Name File Size
BM_Warranty.pdf66.98KB
20485.pdf198.18KB
The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Submodel Years Engine Fitment Notes
Chevrolet Chevy II Base 1966 5.3L / 327 / V8
4.6L / 283 / V8
3.8L / 230 / L6
3.2L / 194 / L6
2.5L / 153 / L4
3500 - 3800 RPM Stall; 1.71 Crank Pilot
Chevrolet Chevy II Base 1967 5.3L / 327 / V8
4.6L / 283 / V8
4.1L / 250 / L6
3.2L / 194 / L6
2.5L / 153 / L4
3500 - 3800 RPM Stall; 1.71 Crank Pilot
Chevrolet Chevy II Nova SS 1967 5.3L / 327 / V8 3500 - 3800 RPM Stall; 1.71 Crank Pilot
Chevrolet Nova 1969 6.5L / 396 / V8
5.0L / 307 / V8
4.1L / 250 / L6
3.8L / 230 / L6
2.5L / 153 / L4
5.7L / 350 / V8
3500 - 3800 RPM Stall; 1.71 Crank Pilot
Chevrolet Nova 1970 7.4L / 454 / V8
6.6L / 402 / V8
5.0L / 307 / V8
4.1L / 250 / L6
3.8L / 230 / L6
2.5L / 153 / L4
6.5L / 396 / V8
5.7L / 350 / V8
3500 - 3800 RPM Stall; 1.71 Crank Pilot
Chevrolet Nova 1971 7.4L / 454 / V8
6.6L / 402 / V8
5.0L / 307 / V8
4.1L / 250 / L6
5.7L / 350 / V8
3500 - 3800 RPM Stall; 1.71 Crank Pilot
Chevrolet Nova 1972 6.6L / 402 / V8
5.0L / 307 / V8
4.1L / 250 / L6
5.7L / 350 / V8
3500 - 3800 RPM Stall; 1.71 Crank Pilot
Chevrolet Nova 1973 5.0L / 307 / V8
4.1L / 250 / L6
5.7L / 350 / V8
3500 - 3800 RPM Stall; 1.71 Crank Pilot
Chevrolet Nova 1974 4.1L / 250 / L6
5.7L / 350 / V8
3500 - 3800 RPM Stall; 1.71 Crank Pilot
Chevrolet Nova 1975 4.3L / 262 / V8
4.1L / 250 / L6
5.7L / 350 / V8
3500 - 3800 RPM Stall; 1.71 Crank Pilot
Chevrolet Nova 1976 4.1L / 250 / L6
5.0L / 305 / V8
5.7L / 350 / V8
3500 - 3800 RPM Stall; 1.71 Crank Pilot
Chevrolet Nova 1977 4.1L / 250 / L6
5.0L / 305 / V8
5.7L / 350 / V8
3500 - 3800 RPM Stall; 1.71 Crank Pilot
Chevrolet Nova 1978 4.1L / 250 / L6
5.0L / 305 / V8
5.7L / 350 / V8
3500 - 3800 RPM Stall; 1.71 Crank Pilot
Additional Contents New needle bearings
Anti Balloon Plate Yes
Anti-Balloon Plate Yes
Automotive Item Grade High Performance
Bolt Circle Diameter 10.750 in./11.500 in.
Bolt Circle Diameter (in) 10.75
California Proposition 65 Required No
Crank Pilot Diameter 1.710 in.
Crank Pilot Diameter (in) 1.71
Emission Code 5
FlexPlate Bolt Circle 10-3/4", 11-1/2"
Flexplate Change Needed No
Furnace Brazed Yes
Lock Up Type No
Lockup No
Lockup Type No
Material Steel
Mounting Stud No
Mounting Studs No
Package Contents Torque Converter, Mounting Hardware
Part Type Automatic Transmission Torque Converter
Stall Speed 3500-3800
Stall Speed (RPM) 3500-3800
Torque Converter Series Nitrous Holeshot
Trans Model GM- TH350 (Auto) 3 Speed, GM- TH400 (Auto) 3 Speed, GM- TH375 (Auto) 3 Speed, GM- TH425 (Auto) 3 Speed
Transmission TH350
Transmission Model TH350, TH400, TH375, TH425
Warranty Time 12 Months

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