Best Engine Swap For Jeep Tj (2024 Updated)

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Are you tired of your Jeep TJ's lackluster performance and looking for an upgrade? An engine swap might just be the solution you need. However, with so many options available, it can be overwhelming to decide which engine is the best fit for your Jeep TJ. In this article, we will discuss the key points to consider when looking for the best engine swap for Jeep TJ.

Firstly, you need to consider your budget. Engine swaps can be expensive, so it's important to determine how much you're willing to spend. Secondly, you need to consider the power gains you want to achieve. Do you want a slight increase in power or a significant boost? This will help you narrow down your engine options.

Thirdly, you need to consider the availability of parts and support for your chosen engine. It's important to choose an engine that has a readily available supply of aftermarket parts and support from manufacturers. Fourthly, you need to consider the complexity of the swap. Some engine swaps require more modifications than others, so it's important to choose an engine that is compatible with your Jeep TJ.

Lastly, you need to consider the emissions requirements in your area. Some engine swaps may not meet the emissions requirements in your area, so it's important to research and choose an engine that complies with your local laws.

In summary, when looking for the best engine swap for Jeep TJ, consider your budget, power gains, availability of parts and support, complexity of the swap, and emissions requirements. By doing so, you can choose an engine that will give you the performance boost you desire without breaking the bank or running afoul of local laws.

10 Best Engine Swap For Jeep Tj

1. 62mm 4 Row Aluminum Radiator For Jeep Wrangler Tj Yj With Chevy V8 Ls Engine Swap (1987-2006) By Primecooling.

The Primecooling 62MM 4 Row Core Aluminum Radiator is an excellent choice for those who want to improve their Jeep Wrangler's cooling system. This radiator is designed to fit perfectly on Jeep Wrangler TJ YJ models with a Chevy V8 LS Engine Swap from 1987 to 2006. It is built with high-quality materials and advanced welding craftsmanship, ensuring that it exceeds the standards of most radiators available in the market.

One of the standout features of this radiator is its high-performance racing design, which can improve cooling by 35% to 45% temperature. This is due to the radiator's four-row core construction, which allows for optimal heat dissipation. The improved cooling performance is especially essential for off-road enthusiasts who put their Jeeps through challenging terrains and demanding situations.

The Primecooling 62MM 4 Row Core Aluminum Radiator is constructed from T-6061 aluminum, making it lightweight and durable. The aluminum material also ensures that the radiator can withstand the harsh conditions that Jeeps are often exposed to. Additionally, the radiator is 100% welded by TIG, which results in a stronger and more efficient cooling system.

Installation of the Primecooling 62MM 4 Row Core Aluminum Radiator is straightforward, as it is a direct bolt-on OEM fitment or replacement. This means that it can be installed without any modifications, and it fits perfectly in the Jeep's engine bay. Moreover, the radiator's coolant capacity is higher than the stock one, ensuring that the engine stays cool even during prolonged periods of use.

The radiator also features a built-in transmission oil cooler, which further improves its overall performance. The oil cooler helps regulate the temperature of the transmission oil, ensuring that it doesn't overheat and cause damage to the transmission. This feature is especially important for Jeep owners who frequently use their vehicles for towing or off-roading.

Primecooling offers a local delivery service, ensuring that customers receive their radiator within 3-5 days. The company also provides a lifetime warranty for every item, giving customers peace of mind knowing that they are covered in case of any defects or after-sales issues. If any issues arise, customers can email the company, and they will be promptly assisted.

In conclusion, the Primecooling 62MM 4 Row Core Aluminum Radiator is an excellent upgrade for Jeep owners who want to improve their cooling system's performance. Its high-quality construction, advanced welding craftsmanship, and racing design make it a reliable and efficient cooling solution for Jeeps with V8 LS engine swaps. The built-in transmission oil cooler and lifetime warranty further add to its appeal, making it a worthwhile investment for any Jeep enthusiast.

2. Mishimoto Aluminum Radiator For Jeep Yj/tj With Chevy V8 Ls Engine Swap (1997-2006)

The Mishimoto MMRAD-WRAV8-87X Performance Aluminum Radiator is designed to fit Jeep YJ and TJ models with an LS engine swap from 1997 to 2006. This radiator is a top-of-the-line option for those who want to improve their vehicle's cooling system and ensure it performs at its best.

With an overall size of 25.5” x 17.2” x 3.9” and a core size of 18.2” x 17.5”, this radiator is built with three rows for optimal cooling efficiency. It features an inlet and outlet size of 1.5” and 1.8”, respectively, as well as a core thickness of 2” and a tank wall thickness of 0.08”. These specifications ensure that the radiator is capable of handling high-pressure situations and is built to last.

Constructed with TIG-welded aluminum, this radiator is built to withstand the toughest conditions. The high-pressure rad cap and magnetic drain plug included with the radiator provide added convenience and reliability. This radiator is designed to be an easy installation, with no modifications necessary to fit it into the vehicle.

Mishimoto is confident in the quality of their products and offers a lifetime warranty on this radiator. This gives customers the peace of mind that they are investing in a product that is guaranteed to perform at its best.

Overall, the Mishimoto MMRAD-WRAV8-87X Performance Aluminum Radiator is an excellent choice for those who want to upgrade their Jeep YJ or TJ with an LS engine swap. With its superior cooling capabilities, durable construction, and lifetime warranty, this radiator is an investment that is sure to pay off in the long run.

3. Hooker Headers Bhs513 Jeep Tj Ls/lt Engine Mount Brackets

The Hooker Headers BHS513 Jeep TJ LS/LT Engine Mount Brackets are the perfect solution for those who want to install an LS or LT engine into their Jeep TJ without having to fabricate new engine frame mounts. These engine mount brackets are designed to use most of the stock engine frame mounts, which minimizes the amount of necessary fabrication.

One of the standout features of these engine mount brackets is their high arch design. This design helps to maintain upper control arm to frame clearance, which is essential for off-road enthusiasts who need maximum ground clearance. Additionally, this design allows for the use of a variety of different drivetrain installations, including stock, transfer case drop, or belly-tuck setups.

Another great feature of the Hooker Headers BHS513 Jeep TJ LS/LT Engine Mount Brackets is that they do not require the removal or replacement of the stock steering shaft support bracket. This makes installation much simpler and ensures that the steering system remains in its original position.

The Hooker Headers BHS513 Jeep TJ LS/LT Engine Mount Brackets also maintain the stock passenger-side offset of the Jeep 4.0L engine. This is important because it prevents alteration of linkage and other associated parts, which can cause issues down the line. Overall, these engine mount brackets are designed to work seamlessly with your Jeep TJ and provide a hassle-free installation process.

In conclusion, if you want to install an LS or LT engine into your Jeep TJ, the Hooker Headers BHS513 Jeep TJ LS/LT Engine Mount Brackets are an excellent choice. With their high arch design, compatibility with a variety of different drivetrain installations, and easy installation process, these engine mount brackets are sure to impress. So why wait? Order yours today and take your Jeep TJ to the next level!

4. 4 Row Aluminum Radiator For Jeep Wrangler With Chevy 350 V8 Swap.

The ECMRAD 4 Row Aluminum Radiator is a high-performance cooling solution designed for 1987-2006 Jeep Wrangler TJ YJ models with 2.5l or 4.0l engines, as well as Chevy 350 V8 engine swaps. It is made from full aluminum construction with durable, TIG-welded end tanks that ensure optimal cooling performance and reliability.

This radiator has undergone stringent testing to ensure that it meets the highest standards of quality and dependability. It is engineered to provide superior cooling capacity, even under extreme conditions, making it an ideal choice for off-road enthusiasts and those who demand the best from their vehicles.

One of the key features of the ECMRAD 4 Row Aluminum Radiator is its OEM style brass petcock drain, CNC machined filler neck and cap. These components are designed to provide a secure and reliable seal, ensuring that the radiator stays leak-free and operates at maximum efficiency.

Additionally, this radiator has been designed with specific fitment in mind. It is vehicle-specific, which means that it has been tailored to fit the 1987-2006 Jeep Wrangler TJ YJ models with 2.5l or 4.0l engines, as well as Chevy 350 V8 engine swaps. It is important to note that the outlet/inlet and mounting bracket locations may differ from the original radiator, so users should carefully follow the instructions provided.

The core size of this radiator measures 18 1/2 inches tall by 20 1/8 inches wide by 2 1/2 inches thick. This large core size allows for greater heat dissipation, making it an ideal choice for those who put their vehicles through their paces on a regular basis.

In conclusion, the ECMRAD 4 Row Aluminum Radiator is a high-performance cooling solution that is specifically designed for 1987-2006 Jeep Wrangler TJ YJ models with 2.5l or 4.0l engines, as well as Chevy 350 V8 engine swaps. It is engineered to provide superior cooling capacity, even under extreme conditions, and is backed by stringent testing to ensure optimal performance and reliability. With its full aluminum construction, OEM style brass petcock drain, and CNC machined filler neck and cap, this radiator is a top choice for those who demand the best from their vehicles.

5. Aluminum Radiator + Fan Shroud Kit For Jeep Wrangler Tj Yj With Gm Chevy V8 Engine Swap.

The CoolingSky 3 Row All Aluminum Radiator + Fan Shroud Combo & Relay Kit is a top-quality aftermarket upgrade for 1987-2006 Jeep Wrangler TJ YJ vehicles with GM Chevy V8 engine swaps. This product is manufactured with unbeatable quality warranty for all parts and is available directly from the manufacturer.

The CoolingSky radiator is crafted from full aviation-aluminum, which is 100% welded by TIG, ensuring the highest level of durability and longevity. The exclusive tube design of the radiator dramatically increases cooling efficiency by up to 30-40%, providing optimal performance for your engine.

In addition to its impressive cooling capabilities, the CoolingSky radiator also features an internal trans cooler, which ensures optimal fluid temperatures for automatic transmissions. This feature is especially important for off-road enthusiasts who demand peak performance from their vehicles in challenging conditions.

Prior to market release, the CoolingSky radiator is rigorously vehicle test-fitted to ensure a perfect drop-in fit for your Jeep Wrangler TJ YJ. This means that installation is quick and easy, and you can enjoy the benefits of improved cooling performance right away.

Overall, the CoolingSky 3 Row All Aluminum Radiator + Fan Shroud Combo & Relay Kit is an excellent choice for Jeep Wrangler TJ YJ owners who have swapped in a GM Chevy V8 engine. With its superior cooling capabilities, durable construction, and easy installation, this product is sure to provide the performance and reliability you demand from your off-road vehicle.

6. 3-Row Aluminum Radiator With Shroud And Fan Relay For Jeep Wrangler And Chevy V8 Swap.

The ECMRAD 3 Row Aluminum Radiator Shroud Fan Relay is a high-quality replacement radiator designed for Jeep Wrangler TJ YJ and Chevy V8 swap conversion applications. This product is constructed with full aluminum material and features durable, TIG-welded end tanks to ensure long-lasting performance and superior dependability.

The radiator has been stringently tested to ensure optimal efficiency and durability. It is designed to be a direct fit for Chevy V8 Engine Conversion ONLY and is compatible with 87-06 Jeep Wrangler TJ YJ Rubicon SE Sahara Unlimited Rubicon Sport models. The upper inlet of the radiator is 1-1/2'' and is located on the driver's side, while the lower outlet is 1-3/4'' and is located on the passenger side. The core size of the radiator is 17-1/2'' H x 18-1/4'' W x 2'' T, and the overall size is 18-1/4'' H x 22-1/4'' W x 3'' T.

ECMRAD has ensured that the radiator is designed to the highest standards and features an OEM style brass petcoke drain, CNC machined filler neck and cap, and aircraft 5057 grade aluminum construction with a raw aluminum finish. The part number for this product is ECM-R-2045.

Overall, the ECMRAD 3 Row Aluminum Radiator Shroud Fan Relay is an excellent choice for those who are looking for a high-quality replacement radiator for their Jeep Wrangler TJ YJ or Chevy V8 swap conversion application. It is designed to be durable, efficient, and reliable, and is sure to provide excellent performance and dependable longevity.

7. 3-Row Aluminum Radiator For Jeep Tj/yj Wrangler Chevy V8 Swap

The Cubauto 3 Rows Aluminum Radiator is a top-of-the-line, high-performance cooling system designed for 1987-2006 Jeep Wrangler TJ YJ GM Chevy V8 engines. With a core size of 18 1/2"H X 20 1/8"W and an overall size of 23 3/8"H X 25 3/4"W, this radiator offers an exceptional fit for your Jeep Wrangler or TJ.

Crafted from full aviation-grade aluminum, the Cubauto radiator is 100% TIG-welded for maximum durability and strength. Its racing-inspired design offers improved cooling by 35-45% temp, making it ideal for high-performance driving. This direct bolt-on OEM fitment or replacement radiator is a perfect fit for Chevy V8 engines.

The Cubauto radiator features an upper hose connection (left) of 1 1/2'' and a bottom hose connection (right) of 1 3/4''. Additionally, it comes equipped with a transmission oil cooler that measures ¢26×305×M16*1.5(Z). These features offer optimal performance in extreme weather conditions.

With its high-density multi-louvered fins, the Cubauto radiator delivers maximum cooling efficiency. Its all-aluminum design ensures durability in all weather conditions. The leading-edge welding craftsmanship and CE approval attest to the innovative engineering, manufacturing technology, and quality control that goes into creating this premium radiator.

The Cubauto 3 Rows Aluminum Radiator is designed to exceed the performance of original equipment radiators. This means that it offers superior cooling performance, durability, and reliability. If you're looking for a top-of-the-line radiator for your Jeep Wrangler TJ YJ GM Chevy V8, the Cubauto radiator is an excellent choice.

8. 3-Row Aluminum Radiator For Jeep Tj/yj Wrangler Chevy V8 Swap

The EGINCOOLER 3 Rows Core Aluminum Radiator is an excellent choice for Jeep TJ/YJ Wrangler Chevy V8 Swap enthusiasts looking for a high-quality and high-performance radiator upgrade. This all-aluminum radiator is designed to fit 1987-2006 Jeep TJ/YJ Wranglers with l4/l6 2.4L/2.5L/4.0L/4.2L OHV/DOHC engines.

The radiator features a core size of 18 1/2"H X 20 1/8"W and an overall size of 23 3/8"H X 25 3/4"W. The upper hose connection on the left is 1 1/2'', and the bottom hose connection on the right is 1 3/4''. The transmission oil cooler is also included and measures ¢26×305×M16*1.5(Z).

The all-aluminum construction of this radiator is made from AA5052 Aluminum, ensuring durability and longevity. Moreover, each item undergoes 100% inspection and testing for quality assurance. The high-performance racing design of this radiator improves cooling by 30% Temp, making it an excellent option for those who want to upgrade their Jeep's cooling system.

The EGINCOOLER 3 Rows Core Aluminum Radiator is a direct bolt-on OEM fitment or replacement, making installation quick and easy. It also has a higher capacity for coolant than the stock radiator, making it more efficient at maintaining optimal engine temperature.

Customers can expect good services from EGINCOOLER, including local delivery service within 3-5 days and a 1-year warranty for every item. In case of any after-sales issues, customers can email the company for prompt assistance.

Overall, the EGINCOOLER 3 Rows Core Aluminum Radiator is an excellent investment for Jeep TJ/YJ Wrangler Chevy V8 Swap enthusiasts who want to upgrade their cooling system. It is made from high-quality materials, has a high-performance design, and comes with good services and a warranty for peace of mind.

9. Aluminum Radiator With Fan Shroud For 1972-1986 Jeep Cj V8 Conversion.

The LUXERAD 3 Rows Core Performance Aluminum Cooling Radiator With Fan Shroud is a high-quality product designed to enhance the cooling efficiency of 1972-1986 Jeep CJ CJ5 CJ6 CJ7 V8 Conversion Chevy Engine Radiador (GM/Chevy V8 Engine SWAP). The radiator is made of premium-grade aluminum, which is known for its excellent heat dissipation properties.

The product boasts a core size of 15.74" x 23.93" x 1.73" and an overall size of 22" x 27" (including the inlet and outlet), making it an ideal fit for the aforementioned models. The inlet and outlet sizes are 1.5" and 1.77" (38/45mm), respectively, ensuring a smooth flow of coolant through the system.

The LUXERAD 3 Rows Core Performance Aluminum Cooling Radiator With Fan Shroud is specifically designed to provide 35-45% more cooling efficiency than the stock radiator. This means that the product is more than capable of handling the increased heat generated by the GM/Chevy Conver. V8 Engine SWAP. The fan shroud, which features two 12-inch diameter fans, further enhances the cooling performance of the product.

The LUXERAD 3 Rows Core Performance Aluminum Cooling Radiator With Fan Shroud is backed by a 12-month warranty, providing customers with peace of mind. The product is available in US stock and is shipped quickly to ensure timely delivery.

In conclusion, if you're looking for a high-quality radiator that is specifically designed to handle the increased heat generated by the GM/Chevy Conver. V8 Engine SWAP, the LUXERAD 3 Rows Core Performance Aluminum Cooling Radiator With Fan Shroud is an ideal choice. With its excellent cooling efficiency, premium-grade aluminum construction, and fan shroud with two 12-inch diameter fans, this product is sure to exceed your expectations.

10. Primecooling 55mm 3 Row Core Aluminum Radiator For Jeep Wrangler Tj Yj W/gm Chevy V8 Swap 1987-2004

The Primecooling 55MM 3 Row Core Aluminum Radiator for Jeep Wrangler TJ YJ w/GM Chevy V8 Swap 1987-2004 is a high-performance radiator that promises to improve your vehicle's cooling by 35-45% Temp. The radiator is made with leading-edge welding craftsmanship and CE approval, ensuring that it is of the highest quality and meets all safety standards.

The radiator features a triple core design which enhances its cooling capabilities, allowing it to dissipate heat more efficiently. It also boasts full T-6061 aluminum construction, which provides superior strength and durability. The radiator is 100% welded by TIG, ensuring that it is leak-proof and built to last.

The Primecooling 55MM 3 Row Core Aluminum Radiator is a lightweight, direct bolt-on OEM fitment or replacement for your Jeep Wrangler TJ YJ w/GM Chevy V8 Swap 1987-2004. It is stronger and has a higher capacity for coolant than the stock radiator, ensuring that your engine stays cool even in extreme conditions.

In addition to its superior cooling capabilities, the Primecooling 55MM 3 Row Core Aluminum Radiator also features a built-in trans oil cooler. This ensures that your transmission oil stays cool, even when the engine is working hard.

If you're looking for a high-performance radiator for your Jeep Wrangler TJ YJ w/GM Chevy V8 Swap 1987-2004, the Primecooling 55MM 3 Row Core Aluminum Radiator is an excellent choice. It is available for local delivery, with a delivery time of 3-5 days. Additionally, it comes with a lifetime warranty for every item, ensuring that you're covered in case of any issues. If you have any questions or concerns, you can email the company for assistance.

Best Engine Swap For Jeep Tj FAQs

How difficult is it to install a new engine in a Jeep TJ, and what tools and skills are required?

Installing a new engine in a Jeep TJ can be a challenging task that requires advanced automotive knowledge and experience. The process typically involves removing the old engine, preparing the new engine for installation, and carefully installing it into the vehicle. Tools required for the job include a variety of wrenches, sockets, ratchets, and other specialized equipment, as well as hoists and lifts to maneuver the engine into place. Skills needed include knowledge of engine mechanics, electrical systems, and automotive diagnostics, as well as experience working with heavy machinery and complex automotive systems. In addition, a thorough understanding of safety procedures is essential to prevent injury and damage to the vehicle during the engine installation process. Overall, installing a new engine in a Jeep TJ is a complex, time-consuming task that should be undertaken only by experienced professionals.

What are the key considerations when choosing an engine swap for a Jeep TJ?

When considering an engine swap for a Jeep TJ, there are several key factors to consider. First, the compatibility of the engine with the Jeep TJ's existing transmission, transfer case, and drivetrain should be evaluated. Additionally, the installation process, including any necessary modifications to the engine bay, wiring, and exhaust system, should be considered. The overall cost of the engine swap, including the price of the engine and any required parts, labor, and potential additional modifications, should also be taken into account. The intended use of the Jeep, such as off-roading or daily driving, may influence the choice of engine and any necessary upgrades to the suspension or brakes. Finally, the availability of aftermarket support and resources for the chosen engine should be considered for future maintenance and upgrades.

What are the most popular engine swaps for a Jeep TJ?

The most popular engine swaps for a Jeep TJ are the GM LS V8, the Hemi V8, the Cummins 4BT diesel, and the 6.0L Powerstroke diesel. The GM LS V8 is a popular choice due to its reliability, aftermarket support, and ease of installation. The Hemi V8 offers more power and torque than the LS, but requires more modifications to fit in the engine bay. The Cummins 4BT diesel is a popular choice for those looking for fuel efficiency and off-road capability, but requires significant modifications to the drivetrain. The 6.0L Powerstroke diesel is a popular choice for those looking for increased towing capacity and torque, but can be expensive to install due to the necessary modifications to the engine bay and drivetrain. Ultimately, the best engine swap for a Jeep TJ will depend on the owner's needs and budget.

What are the pros and cons of different engine swaps for a Jeep TJ, such as a V8 vs. a diesel engine?

Pros of a V8 engine swap for a Jeep TJ include increased horsepower and torque, improved acceleration, and better towing capabilities. Additionally, V8 engines tend to be more readily available and easier to install than diesel engines. Cons include reduced fuel efficiency, higher operating costs, and potential legal and emissions issues.

Pros of a diesel engine swap for a Jeep TJ include better fuel efficiency, increased torque, and potential for longer engine life. Diesel engines also tend to be more durable and reliable. Cons include higher initial cost, potential for increased weight and decreased acceleration, and potential for more complex installation and maintenance.

Ultimately, the decision to swap engines in a Jeep TJ will depend on individual preferences and needs. It is important to consider factors such as intended use, budget, and local regulations before making a decision. Consulting with a professional mechanic or engine swap specialist can also provide valuable insight and guidance.

Which engine swap offers the best power-to-weight ratio for a Jeep TJ?

The most popular engine swap for a Jeep TJ is the 5.3L V8 from a Chevy Silverado. It offers the best power-to-weight ratio and is relatively easy to install with the right kit. The 5.3L V8 produces around 300 horsepower and 330 lb-ft of torque, which is significantly more than the stock engine. Additionally, the 5.3L V8 is known for its reliability and durability. Another option is the 6.0L V8 from a Chevy or GM truck, which offers even more power, but may require more modifications to fit in the TJ's engine bay. Other popular engine swaps include the 4.0L from a Jeep Cherokee or the 6.4L Hemi from a newer Jeep Wrangler. It's important to consider not only the power-to-weight ratio but also the cost, ease of installation, and compatibility with other components before choosing an engine swap for a Jeep TJ.

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