The TCI 242950 is a 4L80E/6X high-stall triple-disc bolt-together torque converter with a 3000 to 3200 RPM stall range. It features woven-carbon friction, lock-up control technology, a removable billet front, pre-hardened steel construction, and internal access for the lock-up assembly, turbine, stator, and bearings.

The bolt-together design supports servicing or re-stalling if future vehicle modifications change converter requirements. The billet front is CNC-machined from pre-hardened steel, while the pre-hardened billet turbine hub, lock-up piston, and 50-spline clutch hub add strength in key converter areas.

The converter is fully furnace-brazed, computer-balanced, and hand-assembled to precise tolerances. Its triple-disc lock-up layout and serviceable billet-front construction make it a serious option for builds that need a high-stall 4L80E/6X converter with room for future changes.

The TCI Saturday Night Special 450900 is a torque converter for 1970 to 1979 Ford C4 applications with a 26 spline setup. It brings several construction details from TCI competition models into a street-focused converter, including furnace-brazed fins and a hardened pre-ground pump hub.

This converter is positioned for show cars, street rods, and performance street builds that need a cost-conscious step up from a basic converter. The Saturday Night Special line is built to add premium performance character while keeping the application street friendly.

Furnace-brazed fins and the hardened hub are the key durability details available for this SKU. Verify the C4 transmission, 26 spline requirement, and 1970 to 1979 application before installation.

The TCI Maximizer Street 241602 is a non-lock-up torque converter for GM TH400, TH425, and TH375 transmissions. It is built for towing and truck use with a 1600 to 2000 RPM stall range, wide bolt pattern, balanced construction, anti-ballooning plate, extra reinforcement, tougher turbine splines, and thicker mounting surfaces.

This converter is made for modified off-road 4x4 trucks and daily-driven trucks that need better initial takeoff without lugging the engine on big tires. The added stall range helps match the converter to the truck’s power range, while the reinforced construction is intended to handle additional drivetrain load and vibration.

TCI notes improved rear wheel horsepower and elapsed times as a result of this converter design. The wide bolt pattern and anti-ballooning plate are key fitment and strength details to verify before purchase. Warranty coverage is limited to 30 days for racing use and 90 days for street or strip use.