B&M Nitrous HoleShot 3500 stall for GM 1965 to 1991 TH400, TH425, TH375 and 1968 to 1981 TH350, TH375B (not TH350C.) The Nitrous Holeshot 3500 stall converter are an excellent choice for vehicles with many 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 10.75 and 11.50 inch dual pattern 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.
| Anti Balloon Plate | Yes |
| Automotive Item Grade | High Performance |
| Bolt Circle Diameter | 10.750 in./11.500 in. |
| Crank Pilot Diameter | 1.710 in. |
| Lock Up Type | No |
| Mounting Stud | No |
| Package Contents | Torque Converter, Mounting Hardware |
| Stall Speed (RPM) | 3200-3500 |
| Torque Converter Series | Nitrous Holeshot |
| Trans Model | GM- TH375 (Auto) 3 Speed |
| Trans Model | GM- TH400 (Auto) 3 Speed |
| Trans Model | GM- TH350 (Auto) 3 Speed |
| Trans Model | GM- TH425 (Auto) 3 Speed |
| Transmission Model | TH375 |
| Transmission Model | TH400 |
| Transmission Model | TH350 |
| Transmission Model | TH425 |
| WARNING CA Proposition 65 | No |
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