TCI Automatic Transmission Conversion Kit Six-Speed 6X 4L80E With Outlaw-X Shifter And 28OZ Flexplate 289/302/351W



  • Fully programmable trans
  • 850 horsepower rated
  • 28oz balanced flexplate
  • Outlaw-X shifter w/ buttons
MSRP $7,992.52
You save $129.12

TCI 4L80E 6X Six-Speed Automatic Transmission Conversion Kit with an Outlaw-X Shifter and 28oz Flexplate for 289, 302 and 351W Engines.

This 4L80E based 6X Six-Speed Automatic Transmission Conversion Kit with an Outlaw-X Shifter (271701P38) from TCI is the perfect choice for your 289, 302 or 351W powered restomod build. Using the latest innovations in drivetrain technology, TCI developed a groundbreaking transmission capable of handling up to 850 horsepower with six forward gears providing quick acceleration and improved fuel economy at cruising speeds.

Features and Benefits:
- Fully programmable transmission with six forward gears. (2.97, 2.23, 1.57, 1.18, 1.00, 0.75)
- Quick acceleration and increased fuel economy at cruising speeds
- Capable of handling up to 850 horsepower
- Outlaw-X shifter with buttons
- EZ-TCU Transmission controller and wiring harness
- SBF bellhousing and 28oz externally balanced flexplate
- Pilot adapter
- Dipstick
- Transmission cooler
- Includes transmission fluid

The new TCI 6X Automatic Transmission Conversion Kit (271701P38) is easy to install as it bolts right up to your SBF engine like a stock transmission. TCI makes it easy to adapt this proven transmission to your small block Ford V8 engine by including the exact bellhousing, a special adapter flexplate, pilot adapter, dipstick and other accessories in a complete package. The Outlaw-X two-button shifter setup allows for manual gear selection while the provided EZ-TCU transmission controller and harness allow for exact shift point programming. All of this gives you the most functional and modern drivetrain combination on the market.

To ensure reliability and overall quality, 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. TCI also utilizes a patented HDT Coating on the transmission for cooler operating temperatures and improved drivetrain efficiency.

Please Note: Custom driveline modifications may be necessary to complete the installation of this transmission conversion.

California Residents: Proposition 65 Warning

Vehicle Fitment

This product will fit the following Bronco years:

This product will fit the following F-100 years:

  • 1948,
  • 1949,
  • 1950,
  • 1951,
  • 1952,
  • 1953,
  • 1954,
  • 1955,
  • 1956,
  • 1957,
  • 1958,
  • 1959,
  • 1960,
  • 1961,
  • 1962,
  • 1963,
  • 1964,
  • 1965,
  • 1966,
  • 1967,
  • 1968,
  • 1969,
  • 1970,
  • 1971,
  • 1972,
  • 1973,
  • 1974,
  • 1975,
  • 1976,
  • 1977,
  • 1978,
  • 1979,

This product will fit the following Mustang years:

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