9in (245MM) Comp Torque Converter

The 9in (245MM) Comp Torque Converter is designed for high-performance automatic transmission builds where torque multiplication and converter lockup precision are essential for engine durability and drivetrain efficiency. This COAN converter is ideal for street performance, bracket racing, and heavy-duty towing applications, particularly when factory converters fail to handle sustained loads or deliver the necessary stall speed for optimized power delivery.

The 245mm diameter design of the converter balances mass and thermal capacity, which are critical in preventing overheating during load-bearing runs. Its compensator-style design dynamically regulates stall speed, allowing the engine to reach optimal RPM for maximum torque output before the transmission load fully engages. This progressive tightening of lockup as throttle input stabilizes reduces transmission stress, enhances fuel economy during cruising, and extends fluid life by minimizing unnecessary heating.

Builders and mechanics working with TH350, TH400, 700R4, and 4L60E transmissions will find this converter to be a reliable foundation for power transfer. The COAN engineering standard ensures tight tolerances and quality welding, validated for performance across a wide range of engine displacements and power levels from 200 to 500+ horsepower builds.