2012–2018 Jeep Wrangler JK/JKU 400HP 5.3L LH8 V8 Crate Engine to Factory Automatic Transmission
Bruiser Conversions offers a fully-integrated, turn-key, bolt-in, 400HP 5.3L LH8 V8 crate engine conversion system for the late-model Jeep Wrangler JK and JKU. Bruiser has combined the legendary power and reliability of the GM Performance small-block V8 engine family with the go-anywhere capability of the Jeep Wrangler JK platform.
How do you make it run off of a Chrysler computer?
We start off converting the engine to our own reluctors to communicate with the Chrysler computer. Most of the internal sensors and everything external on the motor that communicates with the ECM are Chrysler based. By doing that, it gave us the capability of maintaining all of the Jeep factory options for the vehicle as if it were coming off the showroom floor.
Transmission NOT INCLUDED
(bolts directly to the Jeep factory NAG-1 transmission)
2012 – 2018 JK/JKU Wrangler conversions maintain the NAG-1/722.6/W5A580/WA580 automatic transmission which connects to the LS engine using a proprietary adapter assembly. This compact 5-speed automatic transmission is rated at 580 ft-lb torque input capacity.  It has been used in a wide range of vehicles including the Dodge Challenger, Chrysler 300 SRT8, Porsche, Mercedes-Benz Sprinter, Dodge Magnum SRT8, and the supercharged Jaguar X308.  A performance tuned TCM is provided with each engine conversion system.
**This conversion is intended for off-road use only**
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