Description
ACC Performance designed this Boss Hog 4601HD Night Stalker Torque Converter for Towing with GM TH400 transmissions. This hand-built 12” converter has a stall speed 200-300 RPM over stock, and it has been leak and pressure tested as well as digitally balanced.
All Boss Hog torque converters are welded at the fins, not furnace-brazed, eliminating erosion over time. They include industrial-strength Torrington-type bearings that handle more torque than light-duty needle bearings. Aircraft aluminum washers instead of inferior fiber washers ensure all power transfers directly to the ground.
Boss Hog 4601HD Night Stalker Torque Converter Features:
- Fits GM TH400 transmissions
- Stall Speed: 200-300 RPM over Stock
- Torque Converter Use: Towing
- Diameter: 12.00 in.
- Bolt Circle: 11.500 in.
- Input Spline Quantity: 30
- Crank Pilot Diameter: 1.703 in.
- Mounting Hardware Type: 3/8-16 Bolts
- Mounting Hardware Included: No
- Balanced: Yes
- Transmission Cooler Required: Yes
- Lockup Compatible: No
- Anti-Ballooning Plate: No
- Quantity: Sold Individually
Notes: Actual stall speed will vary depending on your vehicle’s setup. This converter will also fit a TH350 with the proper flexplate. Use Type F transmission fluid for best results.
Boss Hog recommends a “Street Bandit” series torque converter if you have upgraded intake, headers, exhaust, cam, or gearing. An “Outlaw” series torque converter is highly recommended if you have a Trans Brake, Nitrous Oxide, Turbocharger or Supercharger.
ACC Performance Boss Hog Torque Converters: An Outright Leader In The Industry!






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