TH400 Night Stalker Series 200 RPM Over Stock Towing GM Torque Converter Part Number 4601HD

GM TH400/TH350 PG - 30 Spline Night Stalker Series Torque Converter

Elevate your transmission performance with our precision-machined Night Stalker Series Torque Converter. This robust unit is engineered for high-performance applications, offering superior durability and reliability in your GM TH400 or TH350 transmission. Built with a factory 12-inch core and rigorously quality controlled, this converter is ready to handle extreme duty demands while ensuring smooth shifts and optimal power transfer.

Technical Specifications

• Transmission Type: GM TH400 / TH350 PG
• Series: Night Stalker Series (Fits TH350 with proper Flex-Plate)
• Part Number: 4601HD
• Stall Range: 200 - 300 RPM (Over Stock)
• Turbine Hub: 30 Spline
• Core Diameter: Factory 12 inch
• Bolt Circle Diameter: 11.5 inches
• Impeller Construction: Hardened Chrome Moley Impeller Hub with Precision CNC Machining
• Bearings: Torrington Style Incased Bearings
• Stator: Modified Extreme Duty Stator
• Crank Pilot Diameter: 1.703 inch
• Bolt Size: 10mm X 1.5 Pitch Threads Class 10 or Stronger
• Plate: NO Anti-Balloon Plate
• Finishes: Four Corner Tac Welded Fins or Furnace-Brazed
• Testing: Leak & Pressure Tested, Digitally Balanced, Quality Inspections at Every Step

Installation and Performance Notes

• This unit is designed for optimal performance when combined with the proper pairing (e.g., fitting TH350 requires a Flex-Plate).
• Do not interchange with the TH350C.
• All advertised stall ranges are based on specific vehicle setups and will vary depending on your application. Please contact us for detailed information regarding installation specifics.

Performance Tips

• Use Type F transmission fluid for the best operational results.
• Apply Blue Loctite when installing components to ensure maximum integrity and security.
• If you have upgraded your vehicle with intake, heads, headers, exhaust, cam, or gearing, we recommend upgrading to our "Street Bandit Series."
• For extreme power additions such as Nitrous Oxide, Turbochargers, or Superchargers, consult our "Out Law Racing Series" for maximum performance reliability.

Built in the USA. Building High Performance & Racing Converters Since 1970!

*Disclaimer: Please be aware of the required warning regarding Cancer and Reproductive Harm (www.P65warning.ca.gov).*