4L60E 4L65E 4L70E 300mm Out Law 32-3,500 RPM LT Direct Fit Lock Up GM Racing Torque Converter Part Number 49633

Extreme Duty Direct Fit Racing Torque Converter - 300mm (P/N 49633)

Achieve unparalleled power transfer and durability with our specialized Torque Converter, engineered for high-performance applications including Choppy Cams and lightweight builds. Designed as a Direct Fit replacement or upgrade for LT series transmissions, this converter handles the extreme demands of aggressive driving, drag racing, and modified vehicles while maintaining a precise stall range.

Built with premium components and rigorous quality control, this 300mm converter ensures reliability under conditions that would compromise standard units. It is ready to handle the pressures of Nitrous Oxide, forced induction, and high-RPM launches.

Technical Specifications

• Transmission Compatibility: GM Chevy 4L60E, 4L65E, 4L70E (Direct Fit for LT or Earlier Engines)
• Part Number: 49633
• Stall Range: 3,200 - 3,500 RPM
• Core Diameter: 9.6 inch
• Input Shaft Splines: 30
• Crank Pilot Diameter: 1.703 inch
• Bolt Circle Diameter (Factory LS): 11.063 inches
• Construction: Hardened Chrome Moly Hub, Torrington Style Incased Bearings, Modified Heavy Duty Stator
• Construction Detail: Precision CNC Machined Anti-Balloon Plates, Whole Back Cover Quenched and Hardened
• Application: Suitable for high-performance use with Nitrous, Turbocharger, Super Charger, or Transmission Breakers.

Key Design Features

• Extreme Duty Lock Up for seamless power transfer.
• Precision CNC Machining on all components, including Anti-Balloon Plates.
• High reliability provided by welded or furnish brazed fins on the converter body.
• Rigorous testing ensures peak performance: Digitally Balanced, Leak & Pressure Tested, and Quality Inspected at Every Step.

Performance Notes

• Advertised stall ranges are specific to the vehicle’s setup and may vary based on your application.
• Contact us for expert advice regarding performance matching or our "No Prep Racing Converters."

Installation & Application Guidance

• Use Old School Type F Transmission Fluid for optimal performance.
• Always install an additional Transmission Cooler when running high-performance builds.
• Secure assembly surfaces using Blue Loctite for maximum hold and longevity.

If you require assistance or wish to discuss your specific build needs, please contact us at 888-267-746. We specialize in building high performance and racing converters since 1970.