4L60E 4L65E 4L70E 300mm LS Night Stalker 16-2,200 RPM Lock Up GM Torque Converter Part Number 49451

Night Stalker Series Torque Converter – GM 4L60E / 4L65E / 4L70E (Part #49451)

Upgrade your drivetrain reliability and performance with our heavy-duty Night Stalker Series Torque Converter. Specifically engineered for LS type engines paired with 4L60E, 4L65E, and 4L70E transmissions (1998 & Up), this extreme-duty converter provides durable power transfer and optimal performance under high stress conditions. Manufactured to stringent quality standards, this is the drop-in solution for your dedicated build.

Performance & Build Specifications

• Series: Night Stalker Series
• Part Number: 49451
• Application: LS Type Engines (2-step input shaft, 1998 & Up)
• Torque Converter Size: 300mm (Factory 12-inch Core)
• Stall Range: 1,600 - 2,200 RPM
• Impeller Hub: Hardened Chrome Moly
• Bearings: Torrington Style Incased Bearings
• Input Shaft: 30 Spline Input Shaft
• Stator: Modified Heavy Duty Stator with Anti-Balloon Plates
• Crank Pilot: Factory 1.703 inch
• Bolt Size: 10MM X 1.5 Pitch Class 10
• Construction: Welded Fins or Furnace Brazed (4 Corner tac)

Extreme Duty Features

• Extreme Duty Lock Up Clutch for efficiency.
• Quality Inspections performed at Every Step of manufacturing.
• Leak & Pressure Tested before shipment.
• Digitally Balanced for smooth operation and extended life.
• Made in the USA construction ensures superior durability.

Installation Guidance

• Use Type F Transmission Fluid for optimal performance in this conversion.
• Always utilize an additional transmission cooler to manage heat build-up during high performance runs.
• Apply Blue Loctite sealant to ensure maximum bond strength on drain plugs and fasteners.

Important Notes

• All advertised stall ranges are based on a specific vehicle setup and may vary depending on your build. Please contact us for personalized consultation regarding your application.
• For applications involving upgraded intake, heads, headers, exhaust, cam profiles, or gearing, we recommend upgrading to the "Street Bandit Series."
• If you are utilizing power adders such as Nitrous Oxide (NOS), Turbocharger(s), Supercharger, or Trans Brake setups, the "Out Law Series" is recommended for maximum reliability.

Contact us directly at 888-267-7464 with any questions or to discuss your specific setup.

Warning: Cancer and Reproductive Harm - www.P65warning.ca.gov