Transmission Specialties Automatic Transmissions

Shop Transmission Specialties automatic transmissions for performance street cars, drag racing vehicles, muscle cars, high-horsepower builds, and custom drivetrain applications. Elite Crate Motors offers TSI transmission options across established automatic transmission platforms, helping performance builders, mechanics, racers, and vehicle owners select configurations suited to their engine output and drivetrain requirements.

About Transmission Specialties Automatic Transmissions

Transmission Specialties, commonly known as TSI, specializes in high-performance automatic transmissions, torque converters, and related drivetrain components.

The company’s complete transmission lineup is centered around established performance platforms including Powerglide, TH400, and 4L80E automatic transmissions.

These transmission families serve different drivetrain requirements.

The Powerglide is a two-speed automatic platform with an extensive history in drag racing and high-performance applications. TSI offers Powerglide configurations across different performance levels, including units equipped with specialized cases, transbrakes, upgraded input and output shafts, and performance-oriented internal components.

The TH400 provides a three-speed automatic platform for applications requiring a different combination of gearing and power capability. TSI offers TH400 configurations ranging from performance builds to transmissions engineered for substantial horsepower.

The 4L80E provides four-speed operation with overdrive and electronic control, making it relevant to compatible street-performance, high-output, and custom applications.

Choosing the Right TSI Transmission

When selecting a Transmission Specialties automatic transmission, begin by determining which transmission family suits the vehicle and drivetrain.

Consider engine horsepower and torque, vehicle weight, transmission type, gear ratios, drivetrain configuration, rear axle gearing, tire size, bellhousing requirements, and intended vehicle use.

Power capability is especially important with TSI transmissions because individual configurations within the same transmission family can be built for significantly different output levels.

For example, TSI offers TH400 transmissions across multiple performance specifications. Choosing simply by the TH400 designation would therefore provide insufficient information for a properly matched drivetrain.

Powerglide buyers should also consider gear ratio, input shaft configuration, output shaft, valve body, transbrake, case design, and other model-specific specifications.

For electronically controlled 4L80E transmissions, the vehicle’s transmission controller and electronic requirements should also be considered.

Torque converter selection should complement the engine characteristics, vehicle weight, gearing, transmission, and intended operating range.

Available Options

Our Transmission Specialties automatic transmission selection may include several configurations for street and performance applications.

Depending on current inventory, buyers may find:

• TSI Powerglide transmissions
• TSI TH400 transmissions
• TSI 4L80E transmissions
• TSI Pro-Line Powerglide transmissions
• Complete racing transmissions
• High-performance automatic transmissions
• Different horsepower configurations
• SFI-case transmission configurations
• Transbrake-equipped transmissions
• Different Powerglide gear ratios
• Upgraded input and output shaft configurations
• Street-performance 4L80E transmissions
• Transmission and torque converter combinations

Individual TSI transmissions can differ considerably in internal construction and intended performance level.

Higher-output configurations may incorporate specialized shafts, pumps, drums, planetary assemblies, valve bodies, cases, and other upgraded components.

Always compare the individual TSI part number and technical specifications rather than assuming that two transmissions from the same family are identical.

Supported Models and Applications

Transmission Specialties automatic transmissions are primarily designed around performance and motorsport drivetrain requirements rather than a single production vehicle family.

Typical applications can include drag racing vehicles, muscle cars, street-performance cars, hot rods, modified vehicles, high-horsepower builds, engine swaps, and custom drivetrain projects.

TSI Powerglide transmissions are particularly relevant to drag racing and other applications where a purpose-built two-speed automatic transmission is appropriate.

TH400 configurations provide another established option for compatible high-output applications.

The 4L80E extends the TSI range into four-speed electronically controlled overdrive applications, making it suitable for certain performance vehicles where additional gearing and electronic transmission control are required.

Compatibility should always be evaluated using the complete drivetrain. Engine family, bellhousing, output configuration, converter, driveshaft, crossmember, shifter, electronics, rear gearing, and available installation space can all affect the correct transmission choice.

Why Buy From Elite Crate Motors

Elite Crate Motors offers Transmission Specialties automatic transmissions for sale alongside automatic transmissions from other established manufacturers, manual transmissions, engines, and drivetrain components.

Our product listings provide relevant information such as manufacturer part number, transmission family, gear configuration, performance specifications, and available technical details.

These specifications are particularly important with TSI products because multiple versions of the same basic transmission platform can be designed around substantially different power requirements.

Our customer support team can assist with available product information and specification questions when additional clarification is required before purchasing.

Inventory, included components, shipping conditions, core requirements, and warranty coverage may vary by product. Buyers should review the individual product listing and applicable order terms for current details.

Frequently Asked Questions

Does Transmission Specialties make complete automatic transmissions?

Yes. Transmission Specialties manufactures complete performance automatic transmissions in addition to torque converters and transmission components. Its current complete transmission range includes Powerglide, TH400, and 4L80E configurations covering different street, performance, and racing requirements.

What TSI automatic transmissions are available?

TSI offers complete transmissions based on Powerglide, TH400, and 4L80E platforms. Individual models are available in different configurations and performance levels, so buyers should compare the exact Transmission Specialties part number, horsepower specification, gearing, case, internal components, and intended application.

Does Transmission Specialties make Powerglide transmissions?

Yes. TSI Powerglide transmissions form an important part of the company’s performance lineup. Available configurations range from entry-level performance transmissions to substantially upgraded Pro-Line models featuring different gear sets, shafts, cases, pumps, transbrakes, and other application-specific components.

Does TSI offer TH400 transmissions?

Yes. Transmission Specialties offers complete TH400 performance and racing transmissions across multiple configurations. Individual units can have different horsepower capabilities, cases, internal components, gear specifications, and other performance features, making the exact TSI model important when selecting a transmission.

How do I choose the correct Transmission Specialties transmission?

Start with the transmission family, engine output, vehicle weight, drivetrain, gearing, and intended use. Then compare the TSI part number, rated application, gear ratios, case configuration, valve body, input and output shafts, torque converter requirements, electronics where applicable, and included components.