1,000+ horsepower 4L60E / 4L65E / 4L70E transmissions!
Our Extreme Duty line of 4L60E, 4L65E, and 4L70E transmissions are rated (and warrantied!) for use with 1,000+ flywheel horsepower!! This series of transmission is the perfect solution for those customers who might otherwise need to upgrade to a 4L80E/4L85E, but don't have the room in their vehicle for the bulkier 4L80E/4L85E series of transmissions. We offer this Extreme Duty 1,000+ HP option for all 1993-later 4L60E, 4L65E, and 4L70E iterations of this transmission family. These units are packed full of premium components, including a variety of key Sonnax billet components and valve body upgrades, Alto & Raybestos friction materials, Hughes proprietary upgrades, and all new GM/AC Delco electronics! All units come standard with our deep cast aluminum transmission pan. This Extreme Duty unit is also ideal for retrofitting behind high horsepower carbureted or fuel injected engines in earlier chassis, and can be mated to virtually any popular engine platform thanks to our Extreme Swap bellhousing options for Ford, Mopar, and GM applications!! Call for more info today at 1-800-274-RACE!