The modest level of intelligence at which this video is delivered sends a message to old-time car guys from the 60s-70s. Too many kids today have not the mind or practical capacity for messing with 'fast' cars and engines; they just know how to throw a ton of money at a vehicle, and then get in and step on the ego pedal.

I’ve got a 2004 HEMI with 174000 miles on it and it’s still going strong

I’ve had 5 of these engines in various applications (Charger, Grand Cherokee, & 300) and never had an issue with this engine.

You did an excellent job explaining this issue, thank you for the knowledge on the 5.7L hemi

This is why I will be keeping my 392 completely stock!

Again another great video!! Keep the videos coming!!

The 392 uses 0-40 oil not 5-20. The pistons and rods are not weak. They just aren't made for a supercharger. If you want a blower buy a hellcat. If you drive the car and don't let it idle for long periods of time you shouldn't have a problem with the cam and lifters. I've had 3 of these and they probably the best cars I've ever owned. The only problem I've ever had was on one car the screen on the radio de-laminated. .

Congrats on 100k! Keep it up and you'll hit a million before you know it

Good info. Thanks. I have a 2018 SRT 392. One model weakness others have noted with these engines is the water pump. Its front bearing went out for me at about 42,000 miles. The car was still within the powertrain warranty so the dealer replaced the pump. Note: If you have this kind of work done at a dealership, be sure to check the fastener torques with your own torque wrench when you get home (cool engine). The dealer guys are prone to ignore this important step. Re: the lifters (and the entire engine) - I would strongly suggest use of Amsoil Signature Series 0W-40. I realize it is more costly. But this is a full synthetic oil with demonstrated far better wear protection than most other synthetics. You can do your own online study on this. Also keep in mind that cold oil lubricates less effectively than warm oil. So when setting out with a cold engine, I suggest selecting 'Sport' mode. This deactivates MDS and keeps the gearbox in lower gears at around-town speeds. The engine running faster provides better oil pressure and flow during that cold oil period. Once oil temp warms to about 150 degrees I will deselect 'Sport' mode unless I am still chugging around town at low speeds. Last, try to avoid the "impress your friends" engine start accompanied with goosing the throttle. Sounds nice, but engine starts are always low oil flow moments, and that's not the best time to rev the engine. You are shortening engine life with this little bad habit.

Thanks for making this informative and interesting video

Great video keep them coming

The 6.4l stock is pretty reliable.

Thank you for this video 🙌. Good thing I always drive in Sport Mode on my Scat Pack Challenger to avoid MDS kicking in.

Thanks for another great video and the information!

My dad has a 2019 Dodge Charger RT Scat Pack with the 392 Hemi V8 and man its a beast.

Congrats on 100k big dawg. Get that $

85,000+ miles on my 2015 SRT 392 and the only engine issue I have had was a leaking intake manifold gasket. The engine runs as strong today as it did the day I bought the car back in 2016.

There was an internal engineering memo issued by Chrysler in 2015 that narrowed the lifter issue to an "anomaly within the needle bearing hardening process that was not recognized during production". Chrysler updated the specs in 2016 and then selected a different manufacturer for the lifters for the 2018 model year.

So they are fine unless someone screws with them. Ok.

I have a 75th Anniversary 2021 RAM 2500 Power Wagon with the 6.4L Hemi. At about 20,000 miles, I started to notice an occasional "sewing machine" ticking when first started. At just over 21,000 miles, it became louder and more persistent, then threw a code and the check engine light came on. I took it to the local CDJR dealer and they determined that a valve had stuck and bent a pushrod. In accordance with RAM guidance, they checked for metal in the oil filter and found none, so they did the repairs (supposedly). Had they found metal, it would have necessitated replacement of the engine. The loud noise has not returned, but the sewing machine ticking is still there when it's started cold.

Thank you so much for you're 6.4 problems . I own a 2014 dodge 2500 with the 6.4 & spun bering . It seems to be a common problem with the 6.4 & now i know why & also know what i have to do . Thank

Sup Marspeed, congrats on 100k! My parents use to have a 392 Durango, but now we have a Hellcat Durango. I think it would be cool if you can do one of those videos where you find how many are made for the Hellcat Durango, and how many Hellcat Durango was made for a color.

Most people boost there 392 to 7 pounds as the engine is said to be optimized from the factory ! , congrats on the 100,000 milestone

Seems to be similar to LS issues, wrist pins and pistons. I know there are LS/LT running low boost on stock internals with no problem.

Another GREAT vid........................ 👍👍👍

Nice showing and States Marines we thank you a bunch of the guys got that car thank you

So Don’t Add boost, unless you’ve prepared the engine first!!!

I have a 2014 Grand Cherokee SRT with avout 90000km on the clock, about a two months ago that loud lifter tick decided to show up. This vehicle has been well cared for and oil has been changed 2 times a year as recommended(under 6000km's every time) with recommended oil. Upon disassembley I found 2 of the non MDS lifters had needle bearing failures and 2 of the MDS lifters had failed by way of the inner body/locking mechanism rotating in the lifter body effectively not allowing them to be ridged when MDS was not active. Luckily I found this before the lifters started eating in to the cam. Cam and lifters were replaced, MDS was deleted. Now the thing runs like a top again. I also happen to have a 2015 Ram 2500 with the 6.4 that was affected by the wrist pin issue. The engine was replaced under warranty and have had no additional issues with that vehicle. All this being said the modern Hemi is an great engine and I'm not looking to replace my vehicles at this point in time.

Personally I've only driven a rental with the Hemi 392 and I thought it was great - too much fun!

Thank you for the video. I have a 2013 challenger srt8. I know one person in my car group who has put a supercharger on their 6.4 challenger. So far it's running good I forget how much boost he's making.

Glad my little 3.2 pentastar has been so reliable with not one problem since bought in 2015.

I bought my 392 knowing there wasn’t much I could do to it without spending enough that it would be like buying the Hellcat. Good to know about the possible lifters problem.

i change my oil on my scat pack every 2000 miles in hopes of never experiencing that cam/lifter failure issue. once the car is paid off, i plan to do an "MDS Delete" with brand new lifters. I hear that this issue affects the MDS engines more often than the manual trans cars. Not sure how reliable that info is, but I feel that it's a good enough excuse to also throw in a custom cam & tune. :)

Thanks for making this! I've been currently shopping, looking at a possible 2500 with a 6.4, and it's good that it's something to be aware of. Sucks that you can't "inspect" this issue more easily so that you can tell whether or not it's good for a while, or if it's starting to show signs that it will fail and cause you bigger headaches. Thank you!

Best to stroke the 392 to 426 with all forged internals. But that ain’t cheap that’s for sure

Great video

The 6.4 is very reliable and is designed to be exactly as it is for a reason. From a company standpoint if you want some serious horse power they have got you covered, HELLCAT. The 392 is a fantastic engine and for most 485 hp is fine, considering that the bad boys of years past was 375 - 450 hp.

Soo glad I purchased the 6 speed manual (no MDS). 2016 Challenger Skat Pack, shaker, she gets babied with 21,000 miles on her. Have had no problems and don't expect I will. Great, informative video!

The rods are powdered metal, fractured big end. Very good rods, and the hyper-pistons are great for high performance non- power adder applications.

Awesome video! Can you do the 4.7L V8 next?

Highly descriptive, Thanks

Wish I would have known these things early on. A failed lifter is what did my motor in, and I was at 117,000 miles. Just bought a new 6.4 engine after my car been sitting for 2 years plus. The failed lifter destroyed my camshaft and initially destroyed my crankshaft as well, along with the main seal and connecting rod bearings. As said on the video, it's very hard to catch the problem early, I experienced the misfiring codes. I thought it was spark plugs and changed that. Code still was there, so I changed coil pack, then fuel injector cause the misfiring was coming up as cyclinder 8 misfire. Even changed my camshaft sensor as well. Still the problem was there. Took it to the dealer, and they couldn't tell without opening the engine up. They want 800.00 just to open up the engine. So once the engine finally blew, I took it to my mechanic who was a mopar tech, he took my engine out, and broke it down what had occurred. Pretty much what the video person was saying. He explained mopar went cheap with another company using cheaper lifters for the 6.4 engine. 6.1 hemi doesn't have this problem like the 6.4. One sure way to know if your having lifter problems is checking your oil for metal flakes in your oil.

All I can say is thank you, 👏👏👏

i am looking to do a project here soon and i am confused between the 5,7 and the 6.4 i do plan on adding forced induction and a cam. which engine is best to go with ?

Would it be safe to say that my M6 392 will be good since I usually shift around 3k-4k rpm when cruising around town, and is kept stock? I'm at 40k miles right now and have never had an issue at this point.

Crazy video .learn new stuff every day. N I'm a dodge guy

Man I keep hearing about the lifter issues and problems but we have had 4 of the 5.7 and on the 2nd of the 6.4 for our ranch. We have luckily have never experienced ANY problems, with all of them getting 130k-175k before they get traded off and i can promise they all don't get the maint on time.

Had a 2014 Ram 6.4 2500 with 30,000 miles had wrist pin noise at cold start up. I traded it in for a 2017 Ram 6.4 2500 at 35,000 miles had lifter issues. I traded it for a 2021 Tundra crew max 5.7 and love the truck. Done with the 6.4s

I think I got issue number 2, you mentioned getting it fixed would be expensive at the dealer, my question is, is this a big problem that I will have to continue to go back to now or is it good to go once its fixed?

Thanks. You just told me what to do to my 392….Forge forge

I run sport mode in my Charger Scat Pack 90% of the time to disable MDS. Also, change your oil regularly with the recommended Pennzoil Ultra Platinum.

Great engine with high failure.... Thank you marspeed

Scary stuff. Whenever mine sits for a while I used the built in coil kill feature to spin the motor to lube it before starting my 2015 Challenger SRT 392. You depress the gas pedal fully and hit the start button.

None of the issues you report have spooked me about my 2019 Challenger Scat Pack. I love the power as-is & have no intention of supercharging it. If I wanted a blown engine, I’d have gotten a Hellcat. (Besides, 100K miles? How many owners will see that?) I change my oil frequently, so I have little concern w/the lifter issues. Just my opinions & thoughts.

WOW! and i was going to buy a brand-new crate 6.4 engine for my old Chrysler. im surprised how they are poor quality rubbish like this, unlike their old school small blocks they made, great video sir

love your channel my question to is, Is there a TUNE for the 392? I had a challenger 392 but had to sell before I could do anything to I would have like to put Long Tube headers an a TUNE but can not find one on line, can you give any advice

I took my 392 to 110,000 miles doing oil changes every 3500 miles before I sold my car…. I had an awesome time in that car. I never really did like the Managed displacement system. And I also didn’t like oil feedback line dumping into the throttle body.

I have a 2014 6.4 SRT, and I am having long cranking times when the engine is hot (Cold start is fine). Any thoughts?

On SRT 6.4L 392 Hemi's. They use ( SAE 0W-40, Synthetic API oil). Page 194 in the 2015 Challengers Owners Manual. Not 5w 20 oil.

mine is a 2016 dodge charger scatpack does this mean for the lifters that they updated the lifters in that year..? so does that mean im safe...???

They may have used them same lifters in the 07 3.7L v6 do I have to change the cams when I change the lifters? I bet I even have to change the three timing chains, gears & tensioners too $$$$

I have a 2021 scatpack have these problems been fixed?

I heard something intriguing about the mds and how it can actually help lube the roller portion better. Either way I have a tick from hell and a slight shudder while at idle. Hot or cold it does it. Sooooo a nice new set of non mds lifters and a sweet lopey cam are around the corner I guess🤷🏻‍♂️ 2014 JGC

Which is more reliable a 392 motor or an 6.2 LS motor? I'm talking about stock to stock and no modification just for a normal everyday use.

You should touch on the casting sand that plugs the heater core and radiator in these things too, every winter we do at least a dozen heater cores, and the coolant recovery bottle always has sand in the bottom.

Does the truck motor have forged pistons

I have been looking for a Chrysler 300 srt8 with the 6.4. I have done a decent amount of research and a flaw that he didn’t mention was that the cylinder deactivation feature, at least on the 300 that is, (I’m not sure what other versions have deactivation) they cause problems. I’m not sure how but my guess is that the unused cylinders are running dry.

I change my oil every time before it reaches 30% oil life. I don’t go by miles. Is that a good way to keep up on the oil changes. Extremely low idle times.

Love my 392 Challenger... on my 2nd Challenger. Manual... bit more displacement than the 5.7, but same MPG...just..MOOOAAAARRRRR!!!!!

I have had 2 6.1s (one I put 200K miles on and the other is 150K and still going strong). I had 2 5.7s and both engines had problems with lifters. I have a 6.4 but it has an upgraded rockers, lifters, etc. and is rock solid. It is the best motor. The 6.1 felt more like a race motor, but the 6.4 has so much more low-end power it is no contest.

I have an 18 SRT392. I had a broken valve spring at 30,000 miles, that required the dealer to tear the top end off and replace a bunch of crap under warranty thank God. I don’t beat on the car and it’s not modded. I’m wondering if that’s also a fatal flaw of the engine. I’ve really babies it since then because I always believed these engines were very reliable.

I was thinking of putting one in my 05 grand Cherokee Laredo with a 3 inch lift on it with the 4.7l under the hood right now but i have been told its a bad idea what do yall think

I bought my Scat Pack specifically because I wanted an N/A car (got a Terminator for the boost 😋). IMO its the most balanced V8 Chrysler produces and its not exactly a surprise that higher compression isn’t typically as good for boost as lower is, despite internals.

I forget where but I also heard the SRT engineers said the 6.4 is good for something like a 70 shot of NOS stock.

Fatal flaws: The engine was built really well and has high compression so if you are stupid and add boost to the stock internal engine it will probably fail. If you don’t properly maintain the engine the lifters will fail and wipe out the cam somewhere around 75,000-100,000 miles. If you ignore it long enough you’ll need a new engine. Neither of these are flaws of the engine, they are flaws of the owner of the vehicle.

My 5.7 made it to 225K before a heard a "Chirping" noise. I thought at first is was a loose exhaust clamp letting squeak/chirp.I caught the lifter problem before it ate my camshaft. Mopar lifters on back order. Bought some China lifters and have put another 20K so far. (knock on wood) The only problem is they "Tick" until oil pressure comes up.

My dream would be to have an Indigo Blue Scat Pack Challenger. I heard the water pump was a common issue on the 6.4 as well.

Sounds like diligent care and minimizing idle time are the key factors. From your research, what would you estimate the overall chances of this (lifter failure) happening to an owner of a 6.4L?

The camshaft doesn't get bathed in oil ( like it should) because the cam bore is too high in the block. Set any modern block next to and old school block. So at idle the lifters don't get lubed properly.

Don't know where you got the 5W-20 weight from but my 392 scat pack requires 0W-40 synthetic as per manufacture. Penzoil Platinum is what I run.

I plan on tuning her after adding an 85 mm throttle bottle, an aFe CAI, and a standalone ECU to run on ethanol (E-85). Will the engine be able to take it? I mean the ethanol would be better for the engine. I want this to add 30-60 HP.

Lots of little issues with my jeep srt, truck is going fine but its a 2021. I have 134000km on a 5.7 hemi and its ticking now

Sir.... Thank you for this VIDEO...... After ... 3 (Three) .. 5.7 Hemi's and a 2018 ....DAYTONA 392 ........ This information is PRICELESS...........OIL must be CHANGED in the VEHICLES METICULOUSLY.............. Every 3000 miles or less.......and the Hemi will serve Dutifully......

I have a 2016 392 Scatpack with what I believe is a lifter issue but Chrysler won't do anything unless I pay for the diagnostic. The ticking noise is only heard at low RPM (very noticeable) and disappears as RPM increases and has been this way forever. I always drive in Sport or Track mode so MDS never kicks in, do lots of manual shifting, change my oil using only Pennzoil 0-40 at the recommended time and never sit and idle very long. Currently I have 90,822 miles and keeping my fingers crossed.

As long as you change your oil regularly and don’t idle your car for more than 5 min you are good. If you are idling let’s say in a drive thru or are waiting on someone occasionally rev the engine to 2,000 rpm so it can splash oil everywhere and keep everything lubricated. This is why you saw a lot of police chargers for sale. But since the lifter revision in 2015 you don’t see a lot of the new police chargers. Not only did they revise the lifters they also revised the camshaft which now makes the lobes higher. So Do research and you can reference everything I’m saying simply by going to a Chrysler website and check all the revisions by part number. Never buy any lifters from a parts store as they are using the old design! I learned the hard way. Always order directly from Chrysler

Does the 6.1 hemi have the same problem?

So does the roller bearing and roller lifter failure issue apply to the gen 3 coyote 5.0 engine from Ford by chance? This sounds and awful lot like the BBQ tick that is common with the engine.

My 2021 ram 2500 with the 6.4 hemi just started ticking on cold mornings with ONLY 6200 miles (bone stock and no idle hours), I'm guessing it's just the manifold bolts because it only seems to happen when it's been sitting all night and temperatures are 45 and below and goes away pretty quick. Haven't had a chance to get it to the dealership yet, but that is inexcusable for a motor that is brand new and been out for almost a decade

congrats on >100k subs!

Thanks

Which is more reliable 5.7 or 6.4?

My 2012 RT Challenger didn’t have problems but I traded it in for a Vetter way before the 100,000 mile mark.

Para evitar esos problemas la solucion es simple usar el aceite correcto

Thanks so much for the info. These are great videos, very informative. However, I still want a 392 Scat Pack wide body. An extended warranty makes sense in these cars.

6.4 HEMI 138,000 miles. No issues so far. I Change the oil with the SRT recommended Penzoil and Wix filter every 5,000 miles. I also make sure to romp the gas every once in a while

can be said of every engine out there, regardless of the manufacturer.

My SRT 392 Challenger does not have the MDS. It is a manual transmission, which doesn't come with MDS. There are thousands of Hemi's that don't have the failure issue with the lifters. As pointed out in the video, it is mostly fleet vehicles with high idle time. Oil pressure and circulation is lower at idle. The MDS system doesn't help either. The 392 lives fine with naturally aspirated mods. Cam, headers, tuning can get you over 600 HP reliably. Don't put boost to an engine that isn't designed for it and it will live. The compression ratio for the 392 is too high for boost.

I think the 392 not liking boost is another way of saying if you want a boosted HEMI, get a Hellcat.

I have a 392 Wrangler on order. Does anyone know if all of some of these issues have been resolved? I love the fact that the 392 is not a DOHC motor than uses chains to run the valve train.

That’s why you don’t just add a supercharger, you have to put Forge pistons so it can support the turbo boost or supercharger