TCI® 6x Six-Speed™ Transmission Packages for Externally Balanced Small Block Ford Applications

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Ashland, MS – TCI® announces new 6x Six-Speed™ Transmission Packages for externally balanced Small Block Ford 28 oz. and 50 oz. applications.

Using the latest innovations in drivetrain technology, TCI® developed a groundbreaking transmission for street, Pro Touring and all out race vehicles – the 6x Six Speed™. The 4L80E-based 6x Six-Speed™ Automatic Transmission is a fully programmable transmission that gives you six forward gears (2.97, 2.23, 1.57, 1.18, 1.00, 0.75) for quick acceleration and increased fuel economy at cruising speeds, while still being capable of handling up to 850 horsepower. New to this 6x transmission lineup are Small Block Ford 28 oz. and 50 oz. externally balance adapter flexplate options.

Using the TCI® EZ-TCU™ Transmission Controller and harness allows for exact shift point programming, and with the optional TCI™ Paddle Shifter or Outlaw-X™ 2 Button Shifter set up for manual gear selection, this automatic transmission gives you the most functional and modern drivetrain combination on the market.

To ensure quality and durability, TCI® engineers run each transmission across a hydraulic valve body test dyno and computer-controlled transmission dyno to ensure proper line pressures and perfect transmission performance.  The serialized spec sheet from the Triple Testing process is included with the transmission, showing test scores and proof of performance.  In addition, each TCI™ transmission utilizes the patented HDT Coating™ for cooler operating temperatures and improved drivetrain efficiency.

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About TCI®

When TCI® opened its doors in 1968, it was a modest operation dedicated to delivering high performance transmission-related parts to a small group of drag racers. From those humble beginnings in Memphis, TN, TCI® has grown to be one of the largest and most technologically advanced manufacturers of high performance aftermarket drivetrain products. Now located in Ashland, MS, some 45 miles from parent company the COMP Performance Group™, TCI® continues to set trends and expand its line of quality transmission, torque converter and accessory parts.

For more information about TCI® and its products, visit us online at, or call us at 1.888.776.9824. Also follow us on Facebook at or Twitter at, or visit our YouTube channel at