4L80E 4L85E LS Night Stalker Series Stock Replacement No Stall Added Lock Up GM Torque Converter Part Number 49480

Night Stalker Series Torque Converter - GM Chevy LS 4L80E/4L85E

Optimize your drivetrain with this high-performance, heavy-duty torque converter. Designed for the GM Chevy LS application, this Night Stalker Series unit provides a reliable stock replacement performance while maintaining exceptional durability under extreme conditions. Manufactured with quality inspections at every step, this torque converter ensures leak-free pressure and flawless operation in your setup.

Key Specifications

• Application: GM Chevy LS 4L80E / 4L85E
• Part Number: [Insert Specific Part Number Here - if available, otherwise leave placeholder]
• Series: Night Stalker Series
• Stall Range: 1,400 - 1,600 RPM (Stock Replacement / No Stall Added)
• Impeller Hub: 2-inch Impeller Hub
• Core Size: Factory 13 inch Core Size
• Bolt Circle: Factory 11.675 inch Bolt Circle
• Input Shaft Details: 35 Spline Input Shaft, for 2-step input shaft
• Construction: Modified Extreme Duty Stator, Hardened Chrome Molly Impeller Hub
• Bearings: Torrington Style Incased Bearings
• Fluid Capacity: Extreme Temp Heavy Duty O-ring
• Lock Up: Oversized Extreme Duty Single Disk Lock Up
• Crank Pilot Diameter: 1.703 inch
• Bolt Size: 10mm X 1.5 Pitch (Class 10.9 or Stronger)
• Additives: No Anti-Balloon Plates
• Build Quality: Digitally Balanced, 4 Corner tac Welded Fins or Furnace Brazed

Installation & Performance Notes

• All advertised stall ranges are based on a specific vehicle's setup and may vary depending on your application. Please contact us for installation advice.
• For the best operational results, use Type F Transmission Fluid.
• Always install an additional transmission cooler to maintain optimal operating temperature.
• Use Blue Loctite when assembling the unit for maximum security.

Important Considerations

• Most vehicles operating with taller tires or needing more power may require an upgraded differential gear set to match the torque converter's output.
• If you have upgraded intake, headers, exhaust, or cam, we recommend upgrading to a "Street Bandit Series" torque converter.
• For applications involving power adders such as Nitrous Oxide (NOS), Turbochargers, or Superchargers, we recommend the "Out Law Series" torque converter.

Experience unmatched quality from a family-owned and operated company that has been building high-performance torque converters since 1970. We stand behind our products with meticulous quality inspections and pressure testing on every unit shipped.