Swap Smart: Boss Hog Direct-Fit Torque Converters for Mixed GM Powertrains

Stop wasting valuable time trying to figure out how to mate an LS engine to an old-school Turbo 350 or 400 transmission, or a small or big block Chevy to a 4L60E or 4L70E. Boss Hog has already done the work for you!

The Boss Hog Direct-Fit Torque Converters for GM feature specialized front covers that are built to the correct height and dimensions to adapt various generations of engines and transmissions together. This allows them to bolt directly to each other without the need for adapters or spacers, simplifying installation, reducing weight, increasing performance, and saving money.

These converters are available in two models:

Street Bandit Torque Converters
These converters improve idle speed, throttle response, and acceleration. They are fully welded by hand and work on engines making up to 650 horsepower. Features include:

• Custom-engineered turbine hubs for more strength and durability
• Vented stators to reduce temperatures
• Precision CNC-machined parts
• Torrington bearings
• Aircraft-quality aluminum washers
• Single bolt pattern to reduce rotating mass to allow the engine to rev faster
• Hand assembled and tested to ensure each converter works as designed

Wild Boar Outlaw Torque Converters
These converters are tough enough to handle the punishment doled out by 1,000-plus horsepower engines. Features include:

• Super lightweight design
• Hardened chromoly impeller hub
• In-house engineered turbine hubs hand-welded to the impeller fins for extreme strength and durability
• CNC-machined anti-ballooning plate handles severe shock loads from nitrous oxide and/or transbrakes
• High-flow stator vents and fluid channels handle extreme heat
• Large industrial-grade Torrington-encased bearings
• Aircraft-grade aluminum washers for increased torque capacity and power transfer
• Single bolt pattern to reduce rotating mass to allow the engine to rev faster

Boss Hog Direct-Fit Torque Converters for GM are available in five stall speeds ranging from 2,400-2,800 RPM (Level 1) to 4,200-5,000 RPM (Level 5). You can get them for the following GM engine and transmission combinations:

• GM LS engines to TH350, TH400, and 30-spline Powerglide transmissions
• GM LS engines to TH200-4R, TH700R4, and 4L60 transmissions
• Small block Chevy engines to GM LS 4L60E, 4L65E, and 4L70E transmissions
• Big block Chevy 400/454 and GM 6.0L LS engines to GM LS 4L60E, 4L65E, and 4L70E transmissions

SEE ALL BOSS HOG DIRECT-FIT TORQUE CONVERTERS FOR GM