TH350 TH400 PowerGlide Mid Plate Pilot Out Law 32-3,500 RPM GM Racing Torque Converter Part Number 47743

GM Chevy TH350/TH400 PowerGlide Torque Converter - 30 Spline Racing Series (Part #47743)

Engineered for demanding high-performance applications, this Super Lightweight Racing Converter is designed to provide superior shift quality and excellent driving characteristics in demanding setups. Ideal for choppy cams, nitrous boosts, turbo applications, and serious drag racing builds.

Performance & Fitment

• Transmission Compatibility: Fits TH400 (with proper Flex-Plate) or PowerGlide with Turbo Shaft (30 Spline).
• Stall Range: 3,200 - 3,500 RPM
• Application Suitability: Excellent for competitive use with Nitrous Oxide, Turbochargers, Super Chargers, and Trans-Breaks.
• Core Diameter: 9.6 inch Core provides a robust foundation for power transfer.

Technical Specifications

• Part Number: 47743
• Turbine Hub Splines: 30 Spline Turbine Hub
• Bolt Circle Diameter: 10.75 inches
• Crank Pilot Size: 1.703 inch Extended 1/4 inch Crank Pilot
• Construction Quality: Precision CNC Machined Hardened Chrome Moley Impeller Hub and Extreme Duty Stator.
• Bearings: Torrington Style Incased Bearings for maximum durability and low friction.
• Cover Plate: Whole Back Cover is Quenched and Hardened for ultimate strength.
• Assembly Detail: All Pump and Turbine Fins are professionally Welded or Furnace-Brazed.
• Safety Feature: Includes Precision CNC Machined Anti-Balloon Plates to stabilize high RPM operation.
• Fasteners: Set with 3/8 X 16 TPI Bolts (Grade 8 hardware required).
• Manufacturing: Leak & Pressure Tested and Digitally Balanced for immediate installation reliability.

Installation Advice

• Use Type F transmission fluid for optimal performance and lubrication.
• Always integrate an additional Transmission Cooler to manage heat during high-stress runs.
• Apply Blue Loctite on all hardware threads to ensure durable, vibration-resistant installation.

Important Installation Notes

• Advertised stall ranges are dependent on a specific vehicle setup and actual performance may vary.
• This unit will NOT interchange with the TH350C model, requiring specific attention to application compatibility.

Proudly Made in the USA. We specialize in building high-performance and racing torque converters since 1970, offering veteran-owned quality and expertise for your most demanding builds.