TCI® 6X Six-Speed Automatic Transmission

[CPG Marketing]

Transmission technology leader develops the world’s first 6-speed automatic transmission capable of handling up to 850 horsepower for GM applications

Using the latest developments in drivetrain technology, TCI® has recently developed an innovative automatic transmission for Pro Touring, street and all-out race vehicles. Designed for GM SBC, BBC and LS applications, the 4L80E-based TCI® 6x Six-Speed Automatic Transmission is a fully programmable transmission that gives you six forward gears (2.97, 2.31, 1.57, 1.18, 1.00, 0.75) for quicker acceleration and increased fuel economy at cruising speeds and is capable of handling up to 850 horsepower.


When used with the required TCI® Transmission Control Unit for shift point programming and the optional TCI® Paddle Shifter for manual mode gear selection, this automatic transmission gives GM powered vehicles the most functional and modern drivetrain combination on the market. This innovative transmission design is also available in a GM performance drivetrain package that includes the TCI® 6x Six-Speed Transmission, transmission control unit, paddle shifter, wiring harness, transmission cooler and dipstick.

To ensure durability, TCI® engineers run each transmission across a computer-controlled transmission dyno to assure proper line pressures and top notch transmission performance. Proof of this triple testing process is included with each transmission, shipped in the form of individual serialized spec sheets containing test scores. These versatile transmissions from TCI® feature a compact design, allowing them to work in a variety of performance GM applications. In addition, each TCI® transmission utilizes the patented HDT Coating™ for cooler operating temperatures and improved drivetrain efficiency. For more information about the new TCI® 6x Six-Speed Automatic Transmission or any other TCI® product, call us at 1-888-776-9824, or visit us online at www.tciauto.com.

Quick Summary
Product: TCI® 6x Six-Speed Automatic Transmissions (GM 4L80E Case)
Part Number: #271600P (Package); #271600 (Transmission Only)

Features & Benefits:
• Fits all GM SBC, BBC & LS engines up to 850 hp
• Six forward gears & fully programmable shift points improve both acceleration & fuel economy
• Unique HDT (Heat Dissipating Technology™) Coating™ for cooler & more efficient operations
• Package includes transmission, transmission control unit, paddle shifter, wiring harness, transmission cooler and dipstick

Visit TCI® Online Store