B&M Holeshot Torque Converter Chev Turbo 350 Turbo 400 , 3000rpm # BM20413 Torque Converter, Holeshot, 3,000 rpm Stall, Chevy, TH400/TH375/TH350/TH375B, Each Torque Converter Use: Street/Strip Stall Speed Rating RPM Range: 2800-3200 Torque Converter Bolt Circle (in.): 11.500 in. Anti-Ballooning Plate: No Lockup Compatible: No Diameter (in.): 10.000 in. Furnace-Brazed: Yes Balanced: Yes Mounting Hardware Included: Yes Torque Converter Stall Note: Actual stall speed may differ due to engine combination, gear selection, and vehicle weight. Quantity: Sold individually. BM Holeshot Torque Converters A higher-than-stock stall speed as delivered by these BM Holeshot converters will provide several advantages and benefits to vehicles with modified engines. Many modifications, particularly big cams, tend to reduce low-end power and torque. These high-stall converters allow the engine to launch the car at higher rpm, where more torque is available. They're a very good choice for the typical street machine that is looking for better launch capability and more strength.