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TCI271600P3 - 6x Six-Speed GM 4L80E Automatic Transmission Package (850hp) with Outlaw Shifter

This product may require vehicle validation(s) for proper fitment. Please contact us to confirm correct vehicle fitment and usage.

Availability: Item has been discontinued and is no longer available
Shipping: FREE 48 State Shipping


Package part number includes TCI® 6x Six-Speed Transmission, Transmission Control Unit, Floor Shifter, Wiring Harness, Transmission Cooler, Dipstick and Transmission Fluid.

As the worlds first aftermarket 6-speed automatic transmission capable of handling 850hp, you better believe this is an amazing piece of engineering! The TCI® 6x Six-Speed Automatic Transmission gives you six forward gears (2.97, 2.23, 1.57, 1.18, 1.00, 0.75) for quicker acceleration and increased fuel economy at cruising speeds. This versatile transmission fits Chevy Small Block, Big Block and LS series engines and features a compact design allowing it to work in a variety of vehicle applications including pro touring, street or race vehicles. When used with a TCI® Transmission Control Unit and TCI® Paddle Shifter, you get the most functional and modern drivetrain combination on the market for your vehicle.

Special Notes:

  • Each TCI® Transmission Control Unit is tested and shipped as a matching unit containing a base tune
  • All 6x 6-Speed Transmissions come with the 1997 & later GM LS Engine Transmission Case which will fit LS or any conventional GM/Chevy Engines

Application List



  • 271600P3
  • 271600P3
  • TCI Transmission
  • Item has been discontinued and is no longer available
  • New


Shipping Information

  • Item Requires Shipping
  • 200.0 lbs.
  • FREE 48 State Shipping

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