Here is some information about the L5718CR engine:

• The L5718CR engine is a 5.7-liter V8 engine that was produced by Chrysler and used in a variety of vehicles, including the Dodge Charger, Challenger, and Durango, as well as the Chrysler 300 and Jeep Grand Cherokee.
• The engine has an overhead valve (OHV) design, with two valves per cylinder.
• The engine uses multi-point fuel injection (MPFI) and features a variable valve timing (VVT) system to improve power and efficiency.
• The horsepower and torque output of the engine can vary depending on the specific model and year, but typical output ranges from around 345 to 395 horsepower and 375 to 410 lb-ft of torque.
• The engine is often paired with an 8-speed automatic transmission, although some models may use a 5-speed or 6-speed automatic transmission.
• The engine is known for its power and reliability, and has been praised for its smoothness and responsiveness.
• The engine has undergone several updates over the years to improve its performance, efficiency, and emissions. For example, in 2011 the engine received a new VVT system, and in 2015 it received a new intake manifold design and improved fuel injectors.

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Here are some additional details about the L5718CR engine:

• The L5718CR engine was first introduced in 2003 as a replacement for the 5.9-liter Magnum V8 engine.
• The engine has a bore and stroke of 3.92 x 3.58 inches (99.5 x 90.9 mm) and a compression ratio of 10.5:1.
• The engine features a cast iron block and aluminum cylinder heads, with a cross-bolted main bearing cap design for increased durability.
• The engine uses a dual overhead cam (DOHC) design with a roller rocker arm valvetrain, which helps to reduce friction and improve efficiency.
• The VVT system used in the engine allows for continuously variable intake and exhaust valve timing, which can improve power and efficiency across a wide range of engine speeds.
• The engine also features Chrysler's Multi-Displacement System (MDS), which can deactivate four of the engine's eight cylinders under light load conditions to save fuel.
• The L5718CR engine has been used in a variety of different vehicles over the years, ranging from high-performance muscle cars to larger SUVs and trucks.
• The engine has a reputation for being reliable and durable, and many owners have reported high mileage with few issues.
• The engine has undergone several updates and improvements over the years, including the addition of MDS and VVT, as well as improvements to the fuel injection system and other components. These updates have helped to keep the engine competitive in terms of power, efficiency, and emissions performance.