Question: How Many Miles Will A 6.4 Hemi Last?

How many miles do 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 was rectified after 2008.

It’s not uncommon to find high mileage 5.7 Hemi trucks running around today..

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).

Why are Hemi engines so powerful?

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.

Why does my Hemi 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.

Why do Hemis 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.

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”.

Is the 6.4 reliable?

The 6.4 isn’t known for longevity, it is known for power. It can be VERY reliable if you take care of it. That being said, if you are buying it used you need to know the past. If you don’t pass on the truck…

Why is 6.4 Powerstroke so bad?

Unlike the 6.0L, the 6.4L’s rocker arm ends don’t see the same amount of lubrication. And given the fact that the engine oil can be heavily diluted with diesel fuel, what little oil the rocker does see isn’t the best lubricant. The result is excessive ball pivot wear and the “tick” the 6.4L is notorious for.

What problems does the 6.4 Powerstroke have?

Poor Fuel Economy. While the performance characteristics of the 6.4L Power Stroke are impressive, the fuel economy is not. … Fuel Dilution of the Engine Oil. … Cylinder Washing. … Leaking Radiator. … Fuel-Water Separator Issues. … DPF Clogging. … Wire Chafing at High Pressure Fuel Pump (HPFP) … Cracked Exhaust Up-pipe Expansion Joints.More items…

Should I buy a Ford 6.4 diesel?

No you should not buy a 6.4L PowerStroke. Especially not one with 160K on it. They rarely make it to 200K without needing major engine repairs and they are among the most expensive PowerStroke engines to work on. … The 6.4L is the single worst engine Ford has ever put in their diesel trucks.

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 a good engine?

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 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 much boost can a 6.4 Hemi handle?

Registered. Most people would respond 6 pounds or less. Magnuson advertises 6psi for the 6.4 although the reality is that it is closer to 5.5psi.

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.

How many CI is a 6.4 Hemi?

392 CID6.4L Hemi Engine Specs (Truck Models)Engine:Chrysler 6.4L Hemi V-8Displacement:392 CID, 6.4 litersFiring Order:1 – 8 – 4 – 3 – 6 – 5 – 7 – 2Bore:4.090 in (103.9 mm)Stroke:3.72 in (94.6 mm)18 more rows

How many spark plugs does a Hemi have?

There are two spark plugs per cylinder in a HEMI V8 engine. So, when the plugs need replacing, there are 16 to change, not eight. Also, it should be noted that all HEMI V8 engines use coil-on-plug ignition systems.