B&M 70420 Tork Master 2000 Torque Converter 1984-96 GM TH700R4/4L60/4L60E

30 spline input, 10-3/4 in. bolt circle, 1800-2200 RPM Stall

PART# 70420

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The Tork Master 2000 fits 1984-93 GM TH700R4/4L60 with 30 spline input and 1993-96 4L60E with 30 spline input and 1997-04 Corvette transmissions. Don't let the exceptional value fool you into thinking Tork Master Converters are not packed with lots of quality features, making them the best value-priced street performance converters money can buy. These converters perform best when paired with stock to modified engines up to 350hp/350 ft lbs of torque, and lighter weight applications, like street rods. The Tork Master will provide noticeably quicker launches and harder acceleration while maintaining normal daily driving qualities. Upgrades like a new precision alloy steel pump drive tube, needle thrust bearing when factory equipped, new thrust washer between turbine and cover when required, and pressure tested and fully balanced by expertly trained technicians. Notes: Higher stall converters can generate more heat, so we highly recommend adding a transmission cooler. Not recommended for big block, supercharged, plate-type nitrous oxide or trans-brake applications. The product images shown are for illustration purposes only and may not be an exact representation of the product. 10.75 in. bolt circle


  • New Needle Thrust Bearing When Factory Equipped
  • Quicker Launches and Harder Acceleration
  • New Precision Alloy Steel Pump Tube
  • Fully Balanced and Pressure Tested
  • B&M Quality & Durability

Product Attributes

Emission Code5
Product TypeTorque Converters
California Proposition 65 RequiredNo
Part Number70420



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Tech Resources

For 1993 to 1996 GM TH700R4 automatic transmission and accepts a 30 splined shaft. Also For 1984 to 1993 4L60E automatic transmission and accepts a 30 splined shaft.


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