5.7 Hemi Spark Plug Gap

5.7 Hemi Spark Plug Gap The 5.7 Hemi spark plug gap is a specific measurement that must be adhered to in order to ensure the proper function of the engine. This particular engine, which is found in many Chrysler vehicles, requires a .044 inch gap between the electrodes in order for the spark plugs to work correctly.

Failing to maintain this precise distance can result in a number of problems, including decreased fuel efficiency and increased emissions. In some cases, it can also cause the engine to run Rough or misfire altogether.

If you have a 5.7 Hemi engine, you may be wondering what the best spark plug gap is. There are a few different ways to find out, but the easiest way is to consult your owner’s manual. The manufacturer will always list the recommended spark plug gap for your specific vehicle.

If you don’t have an owner’s manual or if you want to double-check the recommended gap, you can also look it up online. A quick search will reveal several different sources that list the recommended spark plug gap for 5.7 Hemi engines. Once you know the recommended gap, simply adjust your spark plugs accordingly.

It’s important to note that the ideal spark plug gap can vary slightly from one engine to another. So if you have multiple 5.7 Hemi engines, make sure to check the recommended gap for each one before making any adjustments.

The Great Gap Debate: What should my Spark plug gap be?

2005 5.7 Hemi Spark Plug Gap

If you have a 2005 5.7 Hemi, you need to know the correct spark plug gap. The standard gap for most spark plugs is .040 inches. However, the Hemi uses a larger spark plug, so the gap needs to be slightly wider.

The correct spark plug gap for a 2005 5.7 Hemi is .045 inches. It’s important to use the correct spark plug gap when installing new plugs in your Hemi engine. If the plugs are too far apart, they won’t fire correctly and your engine will run poorly.

If the plugs are too close together, they could arc and cause damage to the engine. Using the proper gap will ensure that your engine runs at its best.

2014 Ram 1500 5.7 Hemi Spark Plug Gap

If you’re the proud owner of a 2014 Ram 1500 with a 5.7 Hemi engine, you might be wondering what the proper spark plug gap should be. Well, according to most sources, including the Ram 1500’s own owner’s manual, the correct gap for your truck’s plugs is .044 inches. However, it’s important to note that while this is the factory-recommended setting, some owners have found that slightly altering the gap can improve performance and fuel economy.

So if you’re feeling adventurous, you might want to experiment with slightly larger or smaller gaps until you find what works best for your truck. Just remember to never go outside of the recommended range specified by your vehicle’s manufacturer. Happy wrenching!

2010 5.7 Hemi Spark Plug Gap

If you own a 2010 5.7 Hemi, it’s important to know the correct spark plug gap. The spark plug gap for this engine is .035″. That means that the electrode on the spark plug should be spaced .035″ from the ground strap on the side of the plug. If your plugs are gapped incorrectly, it can cause all sorts of problems with your engine.

The most common problem is that the engine will misfire. This can happen because the spark isn’t strong enough to jump the larger gap, or because the plugs are fouled by oil or other deposits and need to be replaced. In either case, it’s important to fix the problem as soon as possible.

A misfiring engine can damage your catalytic converter and cost you a lot of money in repairs. So make sure your plugs are gapped correctly and check them regularly to keep your engine running smoothly.

2013 5.7 Hemi Spark Plug Gap

If you have a 2013 5.7 Hemi, you may be wondering what the spark plug gap should be. The answer is .035 inches. This is the factory recommended gap for most applications.

5.7 Hemi Spark Plug Gap

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What is the Spark Plug Gap on a 2013 5.7 Hemi?

The spark plug gap on a 2013 5.7 Hemi is 0.040 inches.

What is the Spark Plug Gap on a 2007 5.7 Hemi?

The spark plug gap on a 2007 5.7 Hemi is 0.045 inches.

What Kind of Spark Plugs Does a 5.7 Hemi Take?

If you have a 5.7 Hemi engine, you’ll need to use spark plugs that are compatible with it. There are several different types of spark plugs that can be used in a 5.7 Hemi engine, and the best type to use will depend on your specific application. Some of the most popular types of spark plugs for a 5.7 Hemi engine include:

-Iridium spark plugs: These spark plugs offer superior performance and longevity compared to other types of spark plugs. They’re designed to withstand higher temperatures and provide a more consistent firing over time. -Platinum spark plugs: Platinum spark plugs offer good performance and durability, and they’re often used as an upgrade from standard copper core spark plugs.

What is Correct Spark Plug Gap?

The correct spark plug gap for your engine will be specified in your owner’s manual. If you don’t have the manual, you can usually find the information online or by contacting the manufacturer. Spark plugs create a spark that ignites the air/fuel mixture in the engine’s cylinders.

The spark plug gap is the distance between the electrode at the end of the spark plug and the metal tip that makes contact with the side of the cylinder head. If this gap is too small, the spark will be weak and might not ignite the mixture. If it’s too large, there will be an excessive amount of sparks and they could “leak” out of the cylinder head, which could cause pre-ignition and damage to pistons and valves.

Most engines today are designed to run on unleaded gasoline with a octane rating of 87. However, if you live in an area where higher octane fuel is available, you might see a performance improvement by using it. Higher octane fuel won’t make your engine run any cooler – in fact, it actually burns hotter – but it can help prevent knocking (detonation).


The proper spark plug gap for a 5.7 Hemi engine is .035 inches. This is the standard gap for most spark plugs, and it should be used unless the manufacturer of the plugs specifies otherwise.

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  • MoparProud

    MoparProud brings a rich background in automotive mechanics to the Truckguider team. With over 20 years of hands-on experience, he is an expert in engine mechanics, particularly the 5.7 Hemi and 6.7 Cummins engines. His insights have also made valuable contributions to forums like Cummins Forum, solidifying his reputation in the automotive community.

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