Interested in performing your LS3 engine conversion on your own? We offer the same components used in our turn-key conversions as a do-it-yourself engine upgrade kit. Each kit comes with a detailed instruction manual to guide you through the process.
Bruiser Conversions fully integrated LS3 engine conversion system for the Jeep JK/JKU Wrangler maintains the original equipment manufacturers (OEM) functionality of all vehicle systems that were supplied with your vehicle. All systems that were functional prior to the conversion process will be functional after the conversion has been completed, this includes: instrument cluster, indicators, gauges, powertrain control systems, cruise control, hill descent mode, tip start, and tap shift. Our system retains the factory PCM and the Chrysler OBD II port. Bruiser Conversions provides the only fully integrated LS3 engine conversion for the JK/JKU Wrangler.
The NAG-1/722.6/W5A580/WA580***, the factory automatic found in the 2012-2018 Jeep JK/JKU Wrangler, remains intact when installing the Bruiser Conversions LS3 engine. 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**
Complete Do-It-Yourself JK LS Engine Installation Kit
New GM Performance LS3 crate engine
Performance tuned PCM
Performance tuned TCM
Engine to NAG-1 Transmission Adapter
Self-aligning Engine Mount Brackets
Stainless Steel Exhaust Y-pipe
Cold Air Intake with K&N Filter
Radiator & Heater Hoses
Battery Tray & TIPM Relocation Bracket
Detailed Instruction Manual
I have had the pleasure of wheeling with the Bruiser team for many years, as well as driving their conversions. The trucks handle great both on and off-road and their power is something you just won't find anywhere else. People can't help but look, gawk and ask a ton of questions because they are so unique in both their looks and performance. Plus, the entire team is made up of some of my favorite people to be around with due to their positive attitudes and constant desire to make everything function at the best of it's potential.
Jeff I want to personally thank you and your awesome crew at Bruiser Conversions for all the work and help with our OX Locker project JK. Even for the work we did ourselves, drawing from your experience has been a big help and time saver, not enough guys like you in the business. FYI, recently I had conversation with Tom the owner over at PSC Motorsports about how happy he was with the LS3 conversion you did on his JK, he convinced me to pull the trigger on it. Looking forward to topping this project off with your LS3 conversion.
Jeff, I am really enjoying this Jeep! The attention to detail, knowledge base, advice and professionalism you provided in helping me put this together “the right way” was invaluable. The turn around time was amazingly fast and your conversion product is top notch. I now have all the power I need to do the things I want to do in style. I get a dopamine rush every time I hit the gas pedal! Tons of fun! Many thanks to you and your team in helping me with this build. Proud owner Nick Holman Oakton, Va andNaples, Fl
Being in the off-road industry myself, I am very picky about where my Jeep is worked on. Add to that the major work of an engine swap and you quickly realize that trust in the shop is EVERYTHING! Jeff and the crew are at the top of their game! The attention to detail is unmatched and the quality could not be any better. Simply put... they know what they are doing. Add to that the friendly service and you have a winning combination. Thanks again guys!
I met Jeff Garland at Easter Jeep Safari in 2015. I had an LS conversion done on my 2012 JKU by another company with a laundry list of issues, and was looking at one of Bruiser Conversions swaps. Jeff leaned in and began to tell me how wonderful the LS swap was. I was less than responsive as he explained how wonderful his swap was. I explained that I already had the swap done by another company, and was less than impressed. Much to my surprise Jeff described several of my issues to a "T" without me telling him anything. As we visited Jeff told me how bad he felt about my experience, and how he could correct the issues. I swallowed hard, and put my trust in one more individual who said that they could make it work. Jeff arraigned shipping, which is no easy task from where I lived, and th...