Tork Master 2000 Conv.

The B and M AUTOMOTIVE Tork Master 2000 Converter is a high-stall torque converter engineered for TH700R4 and 4L60E automatic transmissions. Designed to deliver 1800–2200 RPM stall characteristics, this converter maximizes launch torque during acceleration while maintaining smooth highway cruising efficiency. The 10.750-inch bolt circle ensures direct fitment compatibility with GM's legendary three-speed and four-speed overdrive platforms without modification.

The elevated stall speed transforms how power transfers from engine to transmission during off-the-line acceleration, reducing slippage and heat generation compared to factory converters. This specification is critical for performance applications where engine torque rises significantly above idle RPM. The Tork Master 2000 weighs 40 pounds and measures 13.8 × 7.2 × 15.1 inches, fitting within standard transmission tunnel constraints across multiple chassis generations. Field deployment confirms this converter performs reliably under both street and track duty, holding firm under sustained boost or forced-induction scenarios.

Operators running modified LS or small-block engines paired with these transmissions benefit from the stall range when stepping up fuel delivery or ignition advance. The converter's design bridges the gap between stock efficiency and race-oriented hardware. Whether upgrading a vintage 4x4 for off-road recovery, building a street performance platform, or restoring a classic with modern driveline expectations, the Tork Master 2000 delivers consistent engagement characteristics. Serious builders recognize that torque converter selection directly influences launch feel, transmission longevity, and overall power delivery consistency.