GM 4-speed automatic transmission built as a Stage 1 performance automatic for truck, muscle car, restomod, and custom drivetrain applications. This GM 4-speed automatic transmission is paired with a heavy-duty 300mm torque converter and upgraded internal components for improved shift response and dependable operation in compatible builds.
The Stage 1 build features upgraded clutch packs, reinforced internal components, and valve body improvements designed to provide firmer, more consistent shifts while maintaining practical street drivability. The 300mm torque converter is matched to the transmission for efficient power transfer and responsive launches.
With a 4-speed overdrive configuration, the 4L60E transmission provides a lower-RPM cruising gear for highway driving while retaining the gearing needed for everyday acceleration. The package also includes a professionally configured electronic transmission controller for standalone integration into compatible custom builds.
Package Highlights & Specifications
- Transmission: Stage 1 performance-built GM 4L60E 4-speed automatic
- Torque Converter: Heavy-duty 300mm torque converter
- Internal Upgrades: Upgraded clutch packs, reinforced components, and valve body improvements
- Shift Performance: Calibrated for firmer and more consistent shift response
- Overdrive: 4-speed configuration with overdrive for highway cruising
- Controller: Professionally configured electronic transmission controller for standalone integration
- Applications: Compatible truck, muscle car, restomod, and custom drivetrain projects
- Warranty: Includes a component warranty
Proper application should be confirmed based on the vehicle, engine, torque output, transmission configuration, controller requirements, and supporting drivetrain components.
