Quick Answer: What’S The Difference Between 5.7 And 6.4 Hemi?

Is the 5.7 Hemi engine good?

In general, the third-generation Hemi V8s don’t have any significant design flaws, and the 5.7L version is a solid reliable engine.

Many owners are faced with a strange ticking sound in the 5.7L Hemi engine coming from the valvetrain, which, however, does not affect anything..

What kind of gas mileage does a 6.4 Hemi get?

The 2020 Ram HD 2500 6.4L Gas All of those factors help a little bit with efficiency. Over 1,051.8 total miles, the Ram averaged 15.4 mpg.

Is the 392 a true Hemi?

“Well, the 392 is the original Hemi”, which I will accept, but not that it’s any better or that the current gen is not “real”.

Does 6.4 Hemi require premium gas?

Well-Known Member. 89 is recommended, 87 is acceptable. Premium offers no benefit and is suggested not to be used.

Is 6.4 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).

How can I get better gas mileage in my 6.4 Hemi?

Learn How to Improve Gas Mileage on 6.4 HemiStep 1: Change Oil. The first step of improving the gas mileage of your 6.4 Hemi is changing the oil of the RAM. … Step 2: Tune-Up. … Step 3: Keep on the Run. … Step 4: Tire Check-Up. … Step 5: No Quick Accelerations. … Step 6: Check the Filter. … Step 7: No Additional Weight.

How many spark plugs does a 6.4 Hemi have?

16 spark plugs6.4L Hemi Features 16 spark plugs, two per cylinder, for improved combustion efficiency (performance and fuel economy) and reduced emissions.

Are Hemi engines good on gas?

Hemi surface area is smaller than that of a flathead engine, so less heat escapes during combustion – and hotter fuel burns better.

Why does a Hemi have 2 spark plugs?

The HEMI Magnum engine has two valves per cylinder as well as two spark plugs per cylinder. The two spark plugs help to solve the emission problems that plagued Chrysler’s earlier HEMI engines. The two plugs initiate two flame fronts and guarantee complete combustion.

Which Hemi is the best?

Top 10 Hemi Powered Mopars Of All Times1958 Chrysler 300D.1966 Dodge Coronet/Plymouth Belvedere.1968 Plymouth Barracuda Super Sport.1969 Dodge Charger Daytona.1970-71 Dodge Challenger/’Cuda Convertibles.2003 Dodge Ram Pickups.2015 6.2 Hellcat.2016 6.4 L – 392 ScatPack Shaker.More items…•

How much horsepower can you get out of a 6.4 Hemi?

Displacing 6.4L (392 cubic-inches) the new Apache V8 originally started life as a crate engine, branded as the 392 Hemi. Out of the box, this naturally aspirated pushrod V8 crate motor produced a stout 525 hp and 510 lb⋅ft torque.

How long will a 6.4 Hemi last?

We’ll also discuss what problems these engines commonly experience, as well as if it’s a good towing truck. The maximum mileage you can expect from a 6.4 V8 Hemi is anything in excess of 250 000 miles.

Is a 392 faster than a scat pack?

The Challenger SRT 392 (top) trumps the R/T Scat Pack in terms of equipment and accessories, but not power; both Dodge coupes boast a 485-horsepower 6.4-liter V8.

Is the 6.4 Hemi reliable?

In general, the 6.4 Hemi is a big reliable, American pushrod V8 engine with a factory warranty for five years or 100,000 miles. In stock form, the 6.4 Hemi is a great engine that lasts and serves hundreds of thousand miles. But, the stock 6.4 is by design not built for boost and pushing more power.

How much can a Ram 2500 6.4 HEMI tow?

How Much Can a RAM 2500 Tow? With the 6.4L HEMI® V8 engine, this RAM truck has a Best-In-Class max RAM towing capacity of 17,130 pounds and 6,600-pound max payload capacity.