If you’re a Jeep owner or enthusiast, you might have heard of the Jeep TJ stroker engine. It’s a popular engine upgrade option for those who want to improve their Jeep’s performance. In this article, we’ll discuss everything you need to know about the Jeep TJ stroker engine, including its benefits, how it works, and more.
What is a Jeep TJ Stroker Engine?
The Jeep TJ stroker engine is a modified version of the original 4.0-liter straight-six engine found in Jeep TJs. The engine is named after the process of “stroking” the engine, which involves increasing the length of the piston stroke. By doing this, the engine’s displacement is increased from 4.0 liters to 4.6 or 4.7 liters, depending on the specific stroker kit used.
Benefits of a Jeep TJ Stroker Engine
There are several benefits to installing a Jeep TJ stroker engine:
- Increased power: A stroker engine will increase your Jeep’s horsepower and torque, giving you more power for off-roading or towing.
- Better low-end torque: The increased displacement of the stroker engine will give you more low-end torque, making it easier to crawl over rocks and other obstacles.
- Improved fuel economy: A stroker engine can improve your Jeep’s fuel economy by providing more power with less throttle input.
- Greater reliability: Stroker engines are generally more reliable than stock engines because they use stronger components.
How a Jeep TJ Stroker Engine Works
The process of stroking a Jeep TJ engine involves replacing the stock crankshaft with a longer, aftermarket crankshaft. This increases the distance that the piston travels, which increases the engine’s displacement. In addition to the new crankshaft, a stroker engine will typically have new connecting rods, pistons, and bearings.
Stroker kits come in a variety of sizes, depending on how much you want to increase your engine’s displacement. The most common sizes are 4.6 and 4.7 liters, but some kits can increase the displacement up to 5.0 liters.
How to Install a Jeep TJ Stroker Engine
Installing a Jeep TJ stroker engine is a complex process that should only be attempted by experienced mechanics. The installation process involves disassembling the engine, installing the new components, and reassembling the engine. Additionally, the engine’s computer will need to be reprogrammed to accommodate the increased displacement.
Cost of a Jeep TJ Stroker Engine
The cost of a Jeep TJ stroker engine varies depending on the size of the stroker kit and the specific components used. A basic 4.6-liter stroker kit can cost anywhere from $2,500 to $4,000, while a more advanced kit can cost upwards of $6,000.
Common Problems with Jeep TJ Stroker Engines
While stroker engines are generally more reliable than stock engines, they can still experience problems. Some common issues with Jeep TJ stroker engines include:
- Overheating: Stroker engines produce more power, which can lead to increased engine temperatures. Proper cooling is crucial to preventing overheating.
- Oil consumption: Stroker engines can consume more oil than stock engines, so it’s important to monitor oil levels regularly.
- Engine knock: Stroker engines can sometimes experience engine knock, which is a knocking sound that occurs when the engine is under load. This can be caused by a variety of factors, including incorrect fuel octane or improper timing.
Is a Jeep TJ Stroker Engine Right for You?
If you’re looking to improve your Jeep’s performance, a stroker engine can be a great option. However, it’s important to consider the cost and potential problems before making the investment. Additionally, if you’re not an experienced mechanic, it’s best to leave the installation to a professional.
Conclusion
The Jeep TJ stroker engine is a popular engine upgrade option for Jeep owners who want to increase their Jeep’s power and torque. While the installation process is complex and expensive, the benefits can be worth it for those who are serious about off-roading or towing. If you’re considering a Jeep TJ stroker engine, be sure to do your research and consult with an experienced mechanic before making any decisions.