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Series ExplainedSizzler®StreetFighter®Super StreetFighter®6X Six-Speed
Series Explained
TCI® Street Transmissions

Series Explained

Triple Tested Quality

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, 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® 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.

Sizzler® Transmissions

The economical TCI® Sizzler® is ideal for vehicles that are powered by engines producing up to 300 horsepower. Perfect for a mild daily driver or a Street Rod. Equipped with a TCI® automatic valve body with a Valve Body Improver Kit, it allows you to achieve a firmer, yet not too harsh shift in the vehicle and remains fully automatic. Retains the stock shift pattern. For the system to operate properly, all throttle linkage, vacuum lines and kick-down components must be connected.

The TCI® Sizzler® transmission features: special clutches and bands, an improved lubrication system, chrome-plated, TCI-logo transmission pan, increased thrust capacity, more torque capacity with less slippage, as well as being TCI® factory blueprinted, inspected and dyno tested. TCI® has long set the standard which others are judged by, and they are the name you can trust for dependable performance, day after day, mile after mile.


StreetFighter® Transmissions

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.

The TCI® StreetFighter® transmission features: special clutches and bands, an improved lubrication system, new sprags/roller clutches, chrome-plated, TCI®-logo transmission pan, increased thrust capacity, higher line pressure for extra firm shifts & greater torque capacity with less slippage, as well as being TCI® factory blueprinted, inspected and dyno tested.


Super StreetFighter™ Transmissions

The TCI® Super StreetFighter™ transmission bridges the gap between our StreetFighter® series and our full Competition series transmissions. It is intended for normally aspirated vehicles powered by engines producing up to 600 horsepower. Like our StreetFighter® units, these are equipped with our 100% tested, Manual/Automatic valve body. That means that 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 Super 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.

Typical TCI® Super StreetFighter™ transmission features are Red Eagle® clutches, Kolene® treated steel plates, Red Eagle®-lined, extra-wide Powerbands™, larger diameter servo assemblies, an improved lubrication system, new sprags/roller clutches (upgraded in certain models), enhanced hard parts where applicable, chrome-plated, TCI®-logo transmission pan, increased thrust capacity, higher line pressure for extra firm shifts & greater torque capacity with less slippage, as well as being TCI® factory blueprinted, inspected and dyno tested.


6X Six-Speed Transmission

6X Six Speed Transmission Logo

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, 2.23, 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.

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