Converter 350/400 2700-3000 Stall

The ALLSTAR PERFORMANCE Converter 350/400 2700-3000 Stall is a high-stall torque converter engineered for TH350 and TH400 automatic transmissions, delivering optimized launch performance and acceleration response in street and performance applications. This converter features a 10.750-inch bolt circle and is designed to hold load until the engine reaches the 2700–3000 RPM range, where it unlocks and allows the transmission to find its efficiency band for cruising.

At 23.35 lbs, this converter integrates directly into existing TH350/TH400 installations without requiring transmission case modifications. The 2700–3000 RPM stall range is ideally suited for vehicles running moderate power outputs and street-oriented camshafts. Higher stall speeds generate more heat during launch, so proper cooling—particularly in stop-and-go traffic or warm climates—is essential. The torque converter's slip characteristics directly influence throttle response, fuel economy, and transmission wear patterns, making stall selection critical to matching engine tune and intended duty cycle.

This converter is suited for street machines, weekend cruisers, and performance vehicles where the engine's power band begins to peak around 2700–3000 RPM. Drivers seeking improved off-the-line feel without extreme heat generation or fuel penalty will find this stall range a practical middle ground. The TH350 and TH400 platforms remain popular in hot rod and classic car applications where parts availability and tuning depth are advantages. Proper transmission fluid maintenance and adequate cooling capacity are prerequisites for reliable converter operation in any application.