TCI 700R4 4-Speed Conversion Kit 550HP Modular 48-93
Highlights
- Rated up to 550 HP
- SFI Bellhousing Included
- No Controller Required
- Complete Install Kit
TCI 700R4 4 Speed Conversion Kit 550HP for 1965-1993 Mustangs, 1966-1977 Broncos, and 1948-1979 Ford F-100s with 6-Bolt Modular Engines.
Upgrading to an overdrive automatic improves drivability and cruising efficiency. This TCI 700R4 4-speed conversion kit allows installation of a 700R4 transmission behind Ford 6-bolt Modular engines. It provides a fully mechanical, non-electronic solution designed for street and performance applications.
Features and Benefits:
- Converts 6-bolt Modular engines to 700R4
- Rated for up to 550 horsepower use
- Constant pressure valve body maintains pressure
- SFI-spec bellhousing ensures proper fit
- Includes cooler, dipstick, and hardware
The transmission features a constant pressure valve body to maintain stable line pressure and reduce the risk of failure. An SFI-spec adapter bellhousing ensures proper engine fitment, while the compact design helps minimize the need for tunnel modifications. This kit includes the required components for installation and supports applications up to 550 horsepower.
Vehicle Fitment:
- 1965-1993 Mustang
- 1966-1977 Bronco
- 1948-1979 Ford F-100
California Residents: Proposition 65 Warning
Related Categories: Mustang Automatic Transmission Assemblies, Bronco Transmission, Restomod Transmission, F-100 Transmission, F-100 Restomod Transmission
Installation Difficulty

Intermediate skill is required for this installation.
Installation Instructions
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:
















