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What motor is the 5.9 Magnum?


The 5.9 Magnum is a legendary engine that has earned a reputation for its durability, power, and versatility. Known for its use in Dodge and Chrysler vehicles, this motor has a rich history and remains a popular choice among car enthusiasts and mechanics alike. In this article, we’ll dive into the details of the 5.9 Magnum, its specifications, and why it continues to be a sought-after engine.


Overview of the 5.9 Magnum


The 5.9 Magnum is a 5.9-liter V8 engine that was part of Chrysler's Magnum engine family. It was introduced in the early 1990s as an upgrade to the older LA-series engines. This engine was primarily used in Dodge Ram trucks, Dodge Durango SUVs, and other Chrysler vehicles until it was phased out in the early 2000s. The 5.9 Magnum is known for its robust design and ability to deliver both power and reliability, making it a favorite for towing and heavy-duty applications.


Key Specifications of the 5.9 Magnum



  • Displacement: 5.9 liters (360 cubic inches)

  • Configuration: V8

  • Fuel System: Multi-point fuel injection (MPFI)

  • Horsepower: Approximately 245-250 hp (varies by model year and application)

  • Torque: Around 335-350 lb-ft

  • Block Material: Cast iron

  • Head Material: Cast iron

  • Valvetrain: Overhead valve (OHV) with two valves per cylinder


These specifications highlight the engine's capability to handle demanding tasks, such as towing and hauling, while maintaining reliability over long periods of use.


Applications of the 5.9 Magnum


The 5.9 Magnum was widely used in a variety of vehicles, including:



  • Dodge Ram 1500, 2500, and 3500 trucks

  • Dodge Durango SUVs

  • Dodge Dakota pickups

  • Jeep Grand Cherokee (limited models)

  • Chrysler full-size vans


Its versatility and power made it a popular choice for both personal and commercial vehicles, especially in applications requiring significant towing capacity.


Why the 5.9 Magnum is Still Popular


Even though the 5.9 Magnum was discontinued in the early 2000s, it remains a favorite among car enthusiasts and mechanics for several reasons:



  • Durability: The cast-iron construction of the block and heads ensures long-lasting performance.

  • Aftermarket Support: A wide range of aftermarket parts is available, making it easy to repair or upgrade.

  • Power Potential: With modifications, the 5.9 Magnum can produce significantly more horsepower and torque.

  • Ease of Maintenance: Its straightforward design makes it relatively easy to work on compared to modern engines.


These factors contribute to the engine's enduring popularity, especially among those who enjoy restoring or modifying older vehicles.


Conclusion


The 5.9 Magnum is more than just an engine; it’s a testament to Chrysler's engineering during the 1990s and early 2000s. Its combination of power, reliability, and versatility has cemented its place in automotive history. Whether you’re a mechanic, a car enthusiast, or someone looking to learn more about engines, the 5.9 Magnum is a fascinating piece of machinery worth exploring.


Frequently Asked Questions

Is a V8 Magnum a hemi?


No. The “Magnum” series of engines were redesigned LA-series engines in 318 and 360 cubic inch sizes. They were a substantial improvement over the previous Chrysler small-block V8, but share almost no parts with the earlier engines.



How much HP can you get out of a 5.9 Magnum?


The Engine
Magnum 5.9 engines commonly carried a rating of 245 horsepower, with the tiny factory hydraulic roller camshafts delivering a hair over . 400-inch lift.



What makes a Dodge engine a Magnum?


The most significant changes that defined the Magnum was a new top-end package. Magnum heads featured larger valves with smaller stems, revised ports, and a new valvetrain style.



Is the 5.9 V8 Magnum a good engine?


The 5.9 is a very dependable engine. It's biggest complaint is fuel economy and the second biggest is that it rated at a lower horsepower than Chevy 5.3 or Ford 5.4.



What is a 5.9 Magnum engine?


Magnum 5.9 L V8
This was based on the LA-series 360 cu in (5.9 L) engine, and included the same upgrades and design features as the 5.2 L. The standard 5.9 L produced 230 hp (172 kW) at 4,000 rpm and 325 lb⋅ft (441 N⋅m) at 3,200 rpm; torque was increased to 330 lb⋅ft (447 N⋅m) at 2,800 rpm in the heavy-duty version.



What year did Dodge stop making the 5.9 Magnum engine?


2003
The revision extended the service of the traditional Mopar small-block another 12 years, finally ending production with the 2003 model year. The 5.9 was strictly a truck engine, powering the likes of Durangos, Dakotas, Rams, vans, and Jeeps.



Is a 5.9 Magnum a hemi engine?


That the Dodge 5.9 Magnum is not a HEMI only matters depending on your goals. The 5.9 Magnum is not as powerful or efficient as the third-gen HEMI engine (although the difference in fuel economy was negligible back in 2003).



When did Dodge discontinue the 5.9 Magnum?


2003
The 5.9 L Magnum was available until the 2003 model year, when it was replaced with the 5.7 L Hemi V8 engine.



Is the 5.9 L Cummins?


5.9 L. The 5.9 L Cummins, also known as the "12-Valve" Cummins was the first member of the Cummins B-Series to be used in a light truck vehicle. The 6BT used Bosch fuel systems, injector, and VE rotary pump and P7100 inline injection pumps.



How much HP does a stock 5.9 Magnum have?


The 360ci (5.9L) Magnum had a rated output between 230 and 250 hp.


Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.