FTI Performance Street Racer Lock-Up Torque Converter

2005–2014 Chrysler 300C, 2005–2008 Dodge Magnum, 2006–2014 Dodge Charger, 2008–2014 Dodge Challenger – 5.7L, 6.1L, 6.4L HEMI

Part #: SRT83380

Overview

The FTI Performance Street Racer Series Multi-Plate Lock-Up Torque Converter is engineered specifically for Chrysler and Dodge vehicles equipped with the 9.5-inch NAG1/722.6 automatic transmission. Designed for street performance enthusiasts, this torque converter features a 2800 RPM stall speed that optimizes launch characteristics and throttle response, making it ideal for spirited driving and weekend warrior applications.

Built to enhance acceleration and drivability, it maintains smooth lock-up engagement to improve fuel efficiency during cruising. This torque converter is a reliable upgrade for owners looking to maximize the potential of their 5.7L, 6.1L, and 6.4L HEMI-powered Chrysler 300C, Dodge Magnum, Charger, and Challenger models without compromising daily usability.

Key Features

Combining advanced engineering with premium materials, the FTI Street Racer torque converter delivers durability and performance benefits tailored for aggressive street use:

• 9.5-inch diameter optimized for NAG1/722.6 transmissions
• 2800 RPM stall speed for improved launch and throttle response
• Billet aluminum cover for superior strength and enhanced heat dissipation
• Furnace brazed construction for increased structural integrity
• TIG welded seams to withstand high stress and prevent leaks
• Triple Torrington bearing support for smooth operation and extended longevity
• Multi-plate lock-up clutch design to improve power transfer efficiency
• Precision balanced to reduce vibration and enhance driveline smoothness

Construction & Design

Crafted from high-grade billet aluminum, the FTI Street Racer torque converter features a robust yet lightweight housing that resists warping and heat soak under demanding conditions. The furnace brazed and TIG welded assembly ensures a solid, leak-free construction capable of handling increased torque loads common in performance driving.

Internal components are supported by triple Torrington bearings, which reduce wear and maintain smooth rotation during aggressive acceleration and cruising. The multi-plate lock-up clutch design enhances the converter’s ability to firmly lock at highway speeds, minimizing slippage and heat buildup while improving fuel economy.

Installation & Fitment

This torque converter is a direct fit for vehicles equipped with the 9.5-inch NAG1/722.6 automatic transmission, including:

• 2005–2014 Chrysler 300C 5.7L and 6.1L HEMI
• 2005–2008 Dodge Magnum 5.7L and 6.1L SRT8
• 2006–2014 Dodge Charger 5.7L, 6.1L SRT8, and 6.4L 392
• 2008–2014 Dodge Challenger 5.7L, 6.1L SRT8, and 6.4L 392
• 2005–2013 Jeep Grand Cherokee 5.7L, 6.1L SRT8, and 6.4L SRT8

Installation requires standard transmission removal and torque converter replacement procedures. No major modifications are necessary, making it a straightforward upgrade for experienced mechanics and professional installers.

What's Included

• FTI Performance 9.5" Billet Lock-Up Street Racer Torque Converter
• Installation instructions and technical support documentation

Ideal For

This torque converter is perfect for street performance enthusiasts seeking enhanced launch characteristics, quicker throttle response, and improved lock-up efficiency in their Chrysler or Dodge HEMI-powered vehicles. It is well suited for weekend warriors who demand reliability and drivability without sacrificing daily usability. Whether upgrading a stock vehicle or complementing other performance modifications, this torque converter delivers a balanced and dependable performance boost.

FTI Performance builds racing-focused transmissions and torque converters for street/strip and dedicated drag applications. With converter options tuned for different power levels and use cases, FTI is a staple in builds where consistent launches, efficient power transfer, and drivetrain durability are non-negotiable.