StreetFighter® Transmissions Chrysler- 1967-1979 Torqueflite 727, big block, non lock-up, 18 3/8" tailshaft Application:383, 400, 426, 440 Transmissions We go the extra mile to ensure your transmission is superior in both form and function. Beginning with a careful inspection of the transmission case and components that will be used, we replace stock parts with high performance bands and components where applicable. We increase fluid flow and improve the lubrication system and thrust capacity. Problematic hard parts are replaced with stronger components, many of which we fabricate ourselves at our inhouse machining centers. Valve bodies are completely remanufactured and 100% tested prior to installation. Finally, each and every TCI® transmission must pass both a static hydraulic pressure test during assembly and a final dyno test prior to shipping. That's Triple Tested so you can be confident you're getting a transmission that's ready to perform. Note: Beginning in 1978 for Chrysler and 1979 for AMC, a lock-up torque converter was used in many transmissions. You cannot interchange a lock-up converter for a non lock-up converter. When changing to an aftermarket torque converter it may be necessary to replace the OEM flexplate and mounting bolts. The TCI® StreetFighter® transmission is tough enough to withstand the rigors of even the toughest street machines.It is ideal for vehicles powered by engines producing 450 horsepower with a non-supercharged system using pump gasoline. Equipped with our 100% tested, Manual/Automatic valve body, most units allow you to manually shift the vehicle into each gear change or, by placing it in the drive position, remain fully automatic. In either mode, you get a racetrack shift that bangs through the gears and shaves time off your ET's. When you use the manual gear selection feature, the StreetFighter® upshifts and downshifts right when you move the lever, with no lag or governor override. When you select the normal drive position, the transmission retains positive, automatic shifts for the ease of driving you look for in an automatic transmission. Triple Tested Quality We also go the extra mile to ensure your transmission is superior in both form and function. Beginning with a careful inspection of the transmission case and components that will be used, we replace stock parts with high performance bands and components where applicable. We increase fluid flow, lubrication system and thrust capacity. Problematic hard parts are replaced with stronger components, many of which we fabricate ourselves at our in-house machining centers. Valve bodies are completely remanufactured and 100% tested prior to installation. Finally, each and every TCI® Sizzler® transmission must pass both a static hydraulic pressure test during assembly and a final dyno test prior to shipping. That's Triple Tested so you can be confident you're getting a transmission that's ready to rock.