We created this page to help you learn more about crate engines, transmission kits, and our services. Hopefully, the answer you seek is just a click away!

Frequently Asked Questions

Do you offer diesel engines?

No, we don't offer any diesel engines.

The simple answer is, yes. We aim to use the highest quality products in our engine builds. Our recent experiences have revealed that we cannot trust the quality of the L92 engine blocks since these LS3 engines have been moved out of OE production. The current production L8T block represents a higher quality part. It also has design improvements and provides optimized geometry for achieving large torque output with 87 octane fuel. These are some of the reasons we selected the L8T as the best quality block to develop the powerful and reliable 402 V8 as the new standard for our crate engines.

If the product you order is in-stock and we receive the order before 2pm EST, we can usually ship the same day.

Payment for all engine conversion kits is due in full at the time of order placement.

Yes, any restocking of kits will result in a 25% restocking fee.

In our opinion, the two most cost effective Jeep Wranglers to start your build are:

 

  • 2012 and up JK/JKU Wrangler with automatic transmission
  • 2018 and up 3.6L JL/JLU Wrangler equipped with an automatic transmission.

The Jeep Gladiator JT is also a great option:

  • 2020 and up 3.6L JT Gladiator equipped with an automatic transmission.

While an early model (2007 to 2011) Jeep Wrangler JK with 3.8L engine may be purchased at a relatively lower cost, they will require additional components and effort (more cost) to complete a V8 engine conversion.

Early model, 2007 to 2011, Jeep Wrangler JK/JKU 3.8L vehicles require replacement of the factory automatic transmission (42RLE), center console, shifter, TCM, and transmission wiring harness.

Our V8 crate engines and transmission kits for Jeep Wrangler JK, JL, and Gladiator JT offroad vehicles are fully integrated to work with the OEM system sending the correct data to the dash for tap shift, cruise control, and other factory installed functions.

Most likely, no. Your best bet is to consult with a custom vehicle builder or axle manufacturer about your project.

From our perspective, the OE stock axles were designed to meet a set of specifications from the vehicle manufacturer. These specifications include things like vehicle weight, engine power, tire size, and other things. When you change one or more of these specifications, the axle may not be up to the task. If your build is going to be repowered with a high-performance engine producing large amounts of torque, you should probably replace the stock OE axles. If your plan also includes larger tires, that’s even more reason to replace your OE stock axles. (If your project is a Jeep with a Dana 30 size axle, it needs to be replaced with a stronger unit.)

If you engage in “extreme” or “aggressive” driving, we suggest upgrading your running gear.

Emissions compliance is determined by your local regulatory agency.  The customer is responsible for ensuring that their conversion meets any local or state emissions laws prior to the conversion process.

Bruiser Power Solutions is not liable for emissions compliance.

Bruiser Power Solutions kits rely on the factory radiator and each conversion includes radiator hoses to connect to the existing/factory radiator. The only exception would be if you have a supercharger. If you have a high mileage vehicle we may suggest replacing your old part with a new OEM quality radiator.

Yes. The stock JK radiator, equipped with the late model JK cooling fan, is more than capable of handling the increased heat load from the LS/LT engine.

 

However, your cooling system does require adequate air flow through the radiator to keep the engine at a safe operating temperature.  If you have a big winch, or an aftermarket grille which restricts the OEM grille opening size, you may experience higher cooling system temperatures.  This can typically be resolved by swapping the grille to one which is less restrictive or upgrading your front bumper to a style which allows the winch to be recessed below the grille opening.
JL / JT
Bruiser Power Solutions requires the JL / JT computers to be shipped out for recalibration.
JK
All JK computers will be pre-flashed and kits with be charged accordingly with a core fee.
Every do-it-yourself engine conversion kit comes with a detailed list of core items that must be returned to Bruiser Power Solutions.  These parts, which include the stock PCM, should be shipped back to our facility within one week after receipt of the engine conversion kit.
Maybe.  
This depends greatly on your chosen engine conversion and how your vehicle has been build (Lift height, Tire Size, Axles, etc.).
2-door JK Wrangler Driveshafts: 2-door vehicles will require aftermarket driveshafts and adjustable rear lower control arms during an LS engine conversion.  This is due to the short wheel base and the increased length of the engine/transmission assembly
4-door JKU Wrangler Driveshafts: Jeeps equipped with stock driveshafts and axles may not require aftermarket driveshafts. The ability to use stock driveshafts will be determined by your suspension and axle configuration. We do, however, recommend upgrading them if you intend to subject your vehicle to “extreme” driving conditions or plan to run a large tire (37”+).  Vehicles already equipped with aftermarket driveshafts will require modification or replacement of their existing driveshafts.