Quick Answer: Is the 5 7 Hemi a good engine?

Is 5.7 Hemi a reliable engine?

5.7 HEMI Reliability

Overall, the 5.7L HEMI is a stout and reliable engine. It’s certainly not the most reliable engine in the world. It’s also miles ahead of the least reliable. There’s good reason the Chrysler 5.7L has powered some flagship cars for nearly two decades.

What problems does the 5.7 Hemi have?

The 4 Most Common Dodge 5.7 HEMI Problems

  1. Unexpected Misfires – Failure Of The Spark Plugs. Let’s start with a problem that is the least common of all four, spark plug failure. …
  2. Failure Of The Exhaust Manifold Bolts. …
  3. Problems With The MDS. …
  4. Ticking Sounds Originating From The Engine.

What year did the 5.7 Hemi have issues?

Specifically, it concerned 5.7L Hemis installed in Dodge Chargers and Challengers between 2009 and 2014 in five-speed automaticequipped models with MDS, the fuel-saving cylinder deactivation feature.

How long do 5.7 Hemi engines last?

5.7 Hemi engines are good for 250-300 000 miles and more if properly cared for and regular maintenance is carried out. Early models suffered from valve seat issues which were rectified after 2008. It’s not uncommon to find high mileage 5.7 Hemi trucks running around today.

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What engine is better 5.7 or 6.4 Hemi?

The 6.4 HEMI generally offers an extra 75-100 horsepower over the 5.7 engine. Thanks to larger displacement the 392 is also good for an extra 60-80 lb-ft. Low-end torque is also about 70 lb-ft more than the 5.7 further widening the gap between the two.

Does the 5.7 Hemi require premium gas?

Turns out it’s also for owners of Fiat Chrysler’s Hemi 5.7-liter V-8, as the company recommends 89-octane fuel for this engine.

What kind of gas mileage does a 5.7 Hemi get?

5.7L HEMI® V8 Engine Fuel Efficiency: 15 mpg city/22 mpg highway. 5.7L HEMI® V8 Engine with eTorque Fuel Efficiency: 17 mpg city/23 mpg highway.

Is the 5.7 Hemi good for towing?

The HEMI V8 engine with Class-Exclusive eTorque Mild Hybrid Technology 2 is capable of towing up to 12,750 pounds 3, so you can tow what you need to wherever you need to go.

How much HP does a 5.7 Hemi have?

5.7L HEMI® V8

The 5.7L V8 HEMI® engine is available only on the R/T trim This engine offers 370 horsepower with 395 lb-ft of torque. With this powerful HEMI® upgrade, you’ll get a 0-60 mph of 5.2 seconds and a ¼ mile time of 13.7 seconds.

Is a 5.7 Hemi a big block?

The modern hemi is definitely a small block. The small block / big block is not determined by the factory displacement (for example, Chevy built a 400 cubic inch small block that had more displacement from the factory than the original 396 big block).

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Why do Hemi engines tick?

Low quality fuel can cause the hemi tick. Fuels that contain high amounts of ethanol or that are low octane may not properly lubricate the fuel injectors and can lead to a slight tapping or ticking noise. Low-octane gas has also been known to cause an ignition knock in high-performance engines.

Are HEMI engines good on gas?

Are Hemis Hard On Gas? While there’s a good chance that Hemi engines would be low-rated as heavy-duty engines for trucks due to their combustion chambers, those engines are actually quite fuel-efficient in terms of both power and gas mileage.

Why are HEMI engines so powerful?

A HEMI® engine is composed of a hemispherical combustion chamber with dome shaped cylinders and matching piston tops. This creates less surface area than traditional engine which means that less heat and energy lost, and more power is produced.

Is a Hemi engine better?

The Hemi engine, by design, does a better job of burning all the fuel in the cylinder. Also, because of its design versus a flat head, the surface area is smaller and that means less heat escapes, plus peak pressure can be higher. Also advantageous, is the size of the valves.