B & M Racing & Performance 20412 – Automatic Transmission Torque Converter

Th350 & Th400 Holeshot


Part Number 20412
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Auto Trans Torque Converter; Holeshot; Street & Performance; 2300 To 2500 RPM Stall; Non Lock-Up Style; Without Anti-Ballooning Plate

A higher than stock stall speed as delivered by the Holeshot converter will provide several advantages & benefits in vehicles with modified engines. Many modifications, particularly big cams, tend to reduce low end power & torque. The high stall converter allows the engine to launch the car at higher RPM where more torque is available. The Holeshot is generally a very good choice for the typical street machine that is looking for better launch capability & more strength. Street rods with modified engines will also benefit from a Holeshot converter. If your vehicle is equipped with a plate type nitrous system, you will need a Nitrous Holeshot!! Stall speed listings are based on engines producing 230 Pounds Feet 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.

Condition: New
Recommended Use: Street & Performance
Stall Speed: 2300 To 2500 RPM
Lock Up Style Converter: No
Balanced: No
With Anti Ballooning Plate: No

– Furnace Brazed Impeller & Turbine
– New Precision Steel Alloy Pump Drive Tube
– New Heavy Duty Needle Bearing Between Stator & Impeller (Not A Thrust Washer)
– Needle Bearing Between Stator & Turbine
– Dual Pattern Drive Lugs On Some GM Holeshots
– New Turbine Hub
– New Springs & Rollers In Stators
– Limited 1 Year Warranty


Weight 33.45000 kg
Dimensions 13.70000 × 7.40000 × 15.40000 cm

Part Number