B&M 20481 B&M Nitrous Holeshot 3000 Torque Converter, 1965-91 GM TH400, TH425...

Description

B&M 20481 B&M Nitrous Holeshot 3000 Torque Converter, 1965-91 GM TH400, TH425...
Product  Specifications
Part Number
20481
Anti-Balloon Plate
Yes
Automotive Item Grade
High Performance
Stall Torque Ratio
2800 to 3200 RPM stall
Crank Pilot Diameter (in)
1.71
Additional Contents
New needle bearings
Emission Code
5
Material
Steel
Torque Converter Series
Nitrous Holeshot
Anti Balloon Plate
Yes
Transmission Model
TH400, TH425, TH375, TH350
Flexplate Change Needed
No
Furnace Brazed
Yes
Mounting Studs
No
Bolt Circle Diameter (in)
10.75
Stall Speed
2800-3200
Lockup
No
California Proposition 65 Required
No
Product Summary
10-inch diameter, 10.75 & 11.50-inch bolt circles, 2800-3200 RPM stall
Product Description
B&M Nitrous HoleShot 3000 stall for 1965-91 TH400, 425 and 1968-81 TH350, 375 transmissions (Not TH350C) 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 bolt circle, 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 that 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. These are serious converters for serious performance street cars. To prevent contamination left from worn parts being circulated in your new components causing premature wear, we strongly recommend protecting your investment by adding a B&M transmission cooler with all new transmission installations. Listed converters are NOT to be used in trans-brake applications. Not for use in trans-brake applications. Has both 10.75 and 11.50-inch bolt circles.
Needle Bearing Between Stator and Turbine
Higher Stall Speed, Quicker Acceleration
Anti-balloon Plate for Added Strength
Furnace Brazed Impeller and Turbine
Fully Balanced and Pressure Tested
Steel Alloy Pump Drive Tube
B&M Quality & Durability
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Holley Performance Products warrants new Holley, Flowtech, Hooker, NOS, and Weiand products to be free from defects in material and workmanship for a period of 90 days from date of purchase.
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