6.1L vs. 6.4L Hemi Engine Full Comparison - Which One is Better? (Specs, Performance, Flaws, & MORE)

[@hpjunke]

i have a 6.1 swapped in my 73 Challenger.. although i don’t drive it everyday , It’s been a great engine so far

[@pmp2559]

Did you go auto or manual?

[@hpjunke]

@@pmp2559 Has the 545rfe 5spd auto

[@jtc1964x]

@hpjunke Love that engine. Got 225,000 miles on my first one. Put in a 2nd motor and it is up to 130,000 miles and going strong

[@hpjunke]

@@pmp2559 It’s an auto 545rfe

[@MixedToofer]

Just picked up a 2010 SRT8 with a 6.1 in plum crazy with 30K miles from this old man for 22k! So happy I got it!

[@eeZyy_]

I’m looking at getting one for 27k with about 15k miles

[@hunterbidenscrackdealer3753]

I can’t figure out why those older models aren’t holding their value as much

[@Daineblock]

@@hunterbidenscrackdealer3753 in new school mopar world most want the newest off the line which makes it better for us anyway lower price more obtainable for people who know what they are looking at

[@midnight347]

​@@hunterbidenscrackdealer3753because it's "old" ppl act like thats bad but it's actuallj preferable to me lol. They're more raw with less crap to go wrong newer vehicles come with. It literally was on the same chassis until just recently so I don't understand why people don't go with the older cars more. I mean 22k is decent money for a 2010 model vehicle and some go for more.

[@ModifiedMechanics]

Nobody cares. You got a slow boat

[@G6.1]

2009 wk1 srt8 owner just barely hit 100k on my 6.1 I run Amsoil 0w-40 and it runs amazing.Just take care of these engines and they will not disappoint.

[@knowplay3258]

I'm a Stellantis(Chrysler/FCA) tech at a dealership that also drag races on the weekend. I work on these engines all the time...well the SRT 6.4 and truck 6.4...we never see the 6.1 anymore because most quit running many moons ago. I can make the 6.1 or 6.4 decision fairly simple for most people: Deciding which engine to start with highly depends on your goal. If you want to keep the engine fairly stock with some bolt-ons and minor mods, go with the 6.4L. Cars like the 1320 Challenger, 392 Charger, and 392 Challener. If you are wanting to heavily modify the engine, I mean go all out, but not spend your life savings doing so, go with the 6.1L. You can upgrade the rotating assembly, bore it a little over, and play with the camshaft selection...when matched with an older 5sp auto or 5sp standard...you got you a hot little ride. If you want to heavily mod the 6.4L, be ready to break the bank because of all the modifying and deleting you'll have to do such as the MDS and VVT systems, depending specifically on which 6.4 you start with. The 6.4L blocks are stronger, but there's all the other headache to go with it. If you want to go that route, either buy a bare 6.4L block or go with a Hellcat crate motor...either will be cheaper than the amount of time and money you'll spend heavily modding a SRT 392. My pick for the most bang for the buck without spending big money on a Hellcat: Dodge Challenger R/T 1320. You get the full power of the SRT 392 and most of the SRT suspension/drivetrain upgrades...for the lower price of a "special edition" R/T. Be sure to buy the passenger seat with it...yes, that's extra.

[@knowplay3258]

Some will say to start with a non MDS 6.4L from a manual trans car. Well...that will save you from having to delete the MDS, BUT the provisions for the MDS system in the oil gallery are still there. These provisions are made to direct or redirect lifter actuation/lubrication depending MDS being active or not. These provisions can cause oil cavitation or restricted oiling even with the MDS deleted. Hence....the infamous "Hemi Tick". 5sp manual cars just basically had MDS deleted from the factory...for several reasons I won't go into...but the openings are still there.

[@richey1794]

Gratitude for sharing!

[@knowplay3258]

@Rift33SRT I meant 6sp. All I know of is a 6sp available. I was typing too fast and wrote 5 instead of 6.

[@knowplay3258]

@Rift33SRT I believe the SRT4 Neons had a 5sp. Lmao!

[@troybjones4]

Awesome comparison! I've got an 07 Magnum SRT8 and the 6.1 runs smooth and sounds great. I've had the ecu tuned but it's all stock components and dynoed 408hp at the wheels - fun enough for me :) And I get 22 mpg highway all day, I was surprised to see the stock numbers were lower. Keep up the great work!

[@MarspeedCars]

Nice ride man! Those Magnum SRTs are the rarest of the first gen SRTs, they’re a unicorn to me just such a cool vehicle. Cool to hear the 22 mpg that’s not too bad

[@shakarussanders9911]

That's a cool ride you got there bro! Keep it as long as you can! In my opinion the Magnums and the 06 to 2010 Chargers are going to be pretty popular with a younger generation by 2030 people are going to want them more than the current Mopars

[@NitroDonkey117]

The srt magnum is such a rare gem! Take good care of it!

[@eugenesmithjr9063]

srt magnums are cool af

[@hdhfjfkeir5291]

Yeah ok dude 9.6 L quad turbo V7 nitrous Kia Optima I’ll burn u. Ask around.

[@mr84ttop34]

Wow! I just picked up a 6.1 hemi engine and transmission out of my local junk yard for $400 bucks. I didn’t know much about the the 6.1 but I’m glad I picked it up. I’ll be replacing my 5.7 with the 6.1 as it seems to be the better engine. Thank you for sharing!

[@hemiboy9860]

Cap or im super jelous, i sold a blown motor for 700 but i bought a weecked for 2500

[@mr84ttop34]

@@hemiboy9860 No cap this way. I pulled it myself.

[@bestman7776]

How did that work out for ya? How many miles were on the motor?

[@mr84ttop34]

@@bestman7776 I sold it quite a while ago. It only had 73,000 on it.

[@mr84ttop34]

@ectomorphnranger5165 Sold it

[@ryandickey8027]

Mopar or no car! Love your videos man

[@MarspeedCars]

Thanks for the support man!

[@JacobSmith-rh2sr]

Dodge is a sellout at this point. Releasing all of these special editions that are just reskins of the same car they have had for nearly a decade now and then blowing up the price

[@tespenkr9924]

I guess 'no car' will be the only option in 2024.

[@rikkatheconure2395]

Oh wow.. the 6.1 intake manifold is really satisfying for some reason

[@brianturney3209]

Great to see a video comparing the two engines. I currently have a 2006 Magnum SRT8 with the 6.1 with just over 226K miles. I've loved this engine, although the 5-spd auto to me has been the only "meh" part of the drivetrain. I have a 2023 300C on order, I've wanted a 6.4/8spd for a while now and being in the 300 sealed the deal. Also have a 2020 Ram with the 5.7L and my dad has had a 2012 SRT392 Challenger and now a 2022 Challenger Scat Pack (to replace the totalled 2012). Hemis run in the family.

[@timbrwolf1121]

You can 8 speed swap the magnum these days. Give Russel Drake at Sound German Automotive a call.

[@shawne7228]

I also have a 2023 300C on order in velvet red. I even have a VIN number already. Congratulations to you, I hope we love this 300C. How could we not?

[@kingjay3301]

Ls3 swap it

[@phantom0456]

2.7 swap it!

[@alexanderfollowsChrist]

In short terms: If you don’t plan on modding your engine much, get a 6.4 If you plan on building it up to its limits (1003whp stock internal record) get a 6.1

[@3rdgenaddict]

I wanna slap a gen5 3.0 whipple on my 6.1 so bad. Just thw supercharger, gapped rings, and injectors.

[@dukenukem5753]

@@3rdgenaddict I have a 6.1 with a 2.9 Whipple they came out with the 3.0 a year later after I bought my 2.9 lol no complaints it has insane power.

[@michaelhurley545]

I bought a brand new 06 Charger with the 6.1 what a great engine had good power all thru the RPMS real good low end torque..

[@cogicmj]

In my opinion the 6.1 is my favorite by far. The NAG 1 tranny is an issue but other than that 6.1 is a true muscle car engine. Great video and love the channel.

[@1967davethewave]

My 2013 Challenger SRT ran super consistent 12.70's @ 109. It was totally stock. The only thing that I changed was I added a set of M/T drag radials. I raced it every weekend for a couple of summers. Never had any issues. And for fun I had removed all the SRT badging and stripes and added R/T stuff. It took many Mustangs and Camaros by total surprise!!!

[@jtc1964x]

@1967davethewave LOVE IT! I have a 2011 300C which originally came with the 5.7. I swapped in a tuned 6.4 and I shock everyone out on the highway - especially since I am older. They think they are getting a grandpa and a grandpa mobile. I even pull stock Scat Packs with the tune from HHP. The look on their faces is priceless!

[@Floridalifeinspringhill]

Thats Funny, I just put a 6.1 SRT into my 2010 challenger RT Classic . Black car with white RT stripe . Love it cool car .

[@themojogt]

Loved my stock 6.1. Had it at 230k before I took it apart. I took it apart to do a 426 build. It was running strong til the day I took it apart. Went 140 mph on my way to the shop to work on it. 6.1 for me

[@brycejames2127]

My 06' charger srt8 has the 6.1 hemi , I added a supercharger and some other mods. Runs strong and healthy ! No issues. Change the oil and coolant on time and it will serve you well ! 👍 great comparison here. Great video 👍

[@fish_stick4007]

Take care of the engine and I’ll take care of you………and your wallet

[@uchiha_itachi1507]

6.1 all the way💪

[@LoganRoberts1320]

Great video as always!

[@hemirichie1678]

Awesome video I have a 6.1 and I am Super happy with it

[@douggotley7169]

What sucks so much about the 6.4 is how ‘maxed out’ it is from the factory. You can’t get more hp out of it without spending thousands, while the mustang with a measly 5.0 can get 500whp with bolt ons and a tune

[@pmp2559]

5.0 is built with better internals from factory too compared to any hemi except 6.2 hellcat. But I still prefer hemi

[@crebbsjd]

Pretty good video. I am lucky enough to have a Challenger Scat Pack and the manual 6 speed transmission. I have been seeing 25mpg in cruise control going 70mph on longer distance trips. Pretty amazing what this engine is capable of. The only thing I will do to upgrade later down the road will be a good twin disc clutch. Mine has factory single disc. Overall I feel my car is a flagship design from Mopar and top notch pinnacle feeling everytime I drive it. They really hit the very top of what they are capable of engineering, designing and producing. Sad to think all the cool gas muscle may be gone in the future.

[@jtc1964x]

Great work. I have an 06 Charger SRT8 with 340,000 miles and running strong. The 6.1 is a great engine - more purpose built for higher RPM but lacking the low-end torque of the 6.4. I have raced many 6.4s with the NAG and they always open up a car length or two from low speeds and then we hold in place up to 140. All of the optimizing for the 6.4 (intake, cam phasing, etc.) creates more low-end power and better MPG. But I am not a fan of MDS. I will pay more for gas

[@timtresch4848]

No offense but it's also like you're paying more gas for Less performance just food for thought

[@bangbang-ko2gi]

Only the autos came with mds. Manuals did not

[@jtc1964x]

@bangbang-ko2gi I know. I have an auto 392 now and the tuner removed the weak MDS lifters and also tuned it. The result is amazing. I pull on Scat Packs at high speed, get much higher reliability without the MDS, and don't have to hear that crappy 4 cylinder exhaust sound

[@alansoler2653]

I have a 6.1 300C, I've always wondered myself which would be better. Thanks bro for always making the fire 🔥 video's!!!!

[@blackericdenice]

7:50 I was wondering were you going to talk about the cams. Most people will only talk about the compression ratio and the heads.

[@MrPFFlyer]

I'm thinking that if one were to build one of these engines from a wrecking yard, I'd go after the "stronger" 6.4L BGE block. I also notice that these two engines connect to a small block Magnum LA bellhousing. A drag race version of the 46-48RH/RE (A518/618) could be built to then drop into some old ratty (or nice) A, B or even C body. Just a tip for us geezers that still fool around with such things in our own garages. FYI, I promise I won't butcher my own Scat Pack 6.4 in my Challenger for "experimental" purposes. I'll wait until I get a deal on a wrecked vehicle and pull that engine.

[@Real_AGTUBE]

Technically. Hemis pre and eagle are in the magnum family so you can bolt up 8 speeds to 5.9 v8 and a new 5.7 can mate to a 46rh

[@shippybs]

3rd gen Hemi swaps into 60’s cars has been a thing for over 15 years. All the parts are there. A 6.1 or 6.4 in an A-body with gears is deep in the 12’s and high 11’s basically stock.

[@trillsrt8]

I'm loving my 09 6.1 chally got it for 18k with just 99k miles! Came with headers, intake and after market exhaust.. I have to own this one hopefully I'll get the scat pack later on in life

[@slowgoat6089]

U got ripped off

[@trillsrt8]

@@slowgoat6089 @Slow Goat u retarded. I cld only find regular Rts in good condition for that price and mileage so whatever

[@hibco3000]

Gotta love those big American V8s. Good video very informative

[@rashadthompson8830]

6.1 is a perfect build for a 426 stroker

[@SRT8Los]

Just got a 6.1 jeep I love it

[@thebigokie6.4_392]

The lifter issue gets really bad if you don't change your oil at the intervals also an oil stabilizer helps I use it in all my cars especially my hemi engines. Full synthetic only. Also a lot of the 57 had a lower pressure pump most of the 64 392 and 6 ones have a higher pressure pump that helps keep the upper engine valve train lubricated while idling.

[@Vadim_Andr.]

just add oil a little higher than the level - and no problems

[@srt8bean330]

I love my srt8. Sounds insane beats or hangs in with most cars

[@williamwhite9767]

The early 5.7 hemi up thru 2008 did not have the lifter failure problem like the eagle engines have.

[@MarspeedCars]

True you’re right. It did have the dropping valve seat issue however

[@joshkrause2977]

Still doesn’t happen often, most of the time it happens in high idle vehicles. I have a 2015 ram with 140k no lifter issues.

[@williamwhite9767]

@@joshkrause2977 Some video I saw claimed it happens in 1 engine in 30. Yeah, there are lots of hemis out there with lots of miles. I think the RAMs have the best transmissions and I like the torque of the hemi engines. I have a 2005 Magnum RT that has 120k miles on it and I'm keeping my fingers crossed that a valve seat doesn't drop. I've changed the thermostat to a little lower setting and I have a severe duty radiator that I plan to install to maybe keep the valve seats from dropping.

[@str8profit81]

I got a 07 charger rt that I’ve had now for 10 years 197k miles on it now it’s been good to me. Now it just sits next to my caprice classic since I’m making both of those to show cars, the caprice is getting a ls swap very soon but down the road I would love to swap the 5.7 for a 6.4

[@Real_AGTUBE]

Wrong. All MDS 5.7 engines are prone to the lifter failure. Pre eagles are prone to dropping valve seats as well. Newer eagle non MDS also have the lifter issue too

[@1uponu705]

I like these type of vids. Keep it up!

[@dexburwell]

Awesome content…. I learned a lot … I have ADD - yet stayed focused enough to actually watch the whole video 🙌🏼

[@NewtownVids]

😊👍Mopar or no car😊👍 Awesome video. Next generation Durango is going back to it's roots to be a full size suv for 2024 but we guarantee there's going to be a Durango L which is the long wheel based version like the jeep wagoneer and grand wagoneer.

[@cmdrbillpaxton4302]

My guess is that the 6.1L HEMI last longer because it doesn't have MDS. I believe MDS is related to increased lifter failure. That's just a guess.

[@index6738]

Lifter premature failure was due to weak lifter roller needle bearings. Not MDS related issue.

[@cmdrbillpaxton4302]

​@@index6738 Check out this video about the MDS and how it affects oiling of the lifter. "5.7 HEMI Lifter Failure Could this FIX the lifter issue FOREVER?" kzbin.info/www/bejne/bp3NZaCCnaZ8ars

[@index6738]

@@cmdrbillpaxton4302 . I know…he is barking up wrong tree. Clear early Gen 3 Lifters were weak and failed prematurely. That’s why Lifters have been upgraded to heavy duty design.

[@greasygrease9972]

Proud to say I got a 6.1 all natural.

[@6reen6uy]

Variable Valve Times is just one of the coolest feats in auto engineering I’ve ever seen

[@IhateYoutube]

Check out variable stroke con rods Porsche was developing. Not sure if they went into production or not, but pretty mind blowing!

[@6reen6uy]

Thanks I’ll have a look, sounds crazy

[@MrHonestZ1]

There's one person's been testing on issue with the lifters wearing out on these hemi motors is to change out the oil pump to a high flow oil pump variation of from the hellcat.

[@crazyQ58]

Definitely love my 6.1l I've got mine rocking a magnuson supercharger pushing 5psi on stock internals and I have to say this thing screams

[@Drip2SG]

What about transmission?

[@crazyQ58]

​@@Drip2SG nag1 5speed can handle a decent bit of horse when you start hitting around 700+ to the wheel you gotta start worrying

[@dgeo0392]

Thank you. Another awesome video! 🙂

[@n.elliott9122]

It seems that pre. Eagle 5.7 are much better. I have a 3rd Gen ram with a donor Hellcat engine and transmission waiting to go in. Have to thank the guy who wrecked it for providing me his engine for cheap!

[@SuperSnakePlissken]

I had a manual challenger 6.1L and loved it. Drove it for about five years until we needed a mini van for the kiddos. Miss it every day.

[@douggotley7169]

This comments makes me want a vasectomy. Kids suck man

[@SuperSnakePlissken]

@@douggotley7169 Kids are worth it! The Honda Odyssey I replaced it with is great. Of course once the kiddos are all out of the house I'll be jumping back into a Challenger. Not one of those EV BS versions but a classic V8 at some point.

[@FlintMarshall]

Thanks for this info. Much appreciated!

[@300ddsrt3]

Another great video, I have one of each in my garage, 05 300 SRT8 and you guessed it 2018 DDSRT

[@MarspeedCars]

Wow nice combo you got there!

[@niojataj]

Yeah now he tells us. LOL that ticking time bomb of a roller lifter system cost me $11,000 at a dealership I had to replace the entire 6.4 engine this car is mine until death do us part.

[@Vadim_Andr.]

you just didn't care about the engine

[@sleepytimeshecomes]

2006 Chrysler 300 SRT8 with 130k, 2 owner, all original except hot intake and stereo. I just swapped out the plugs, and the shocks n struts. The ride is a little rough with the performance suspension but handles well. If I ever do any real upgrades I would rather just drop a used Hellcat engine, trans, and rear end.

[@murdered4269]

6.1’s still better cuz it can actually handle boost

[@rooh5825]

Just remember, neither would exist without that venerable 2.4L turbo :)

[@talentscout5135]

When the price is way different I say get a good running 6.1. For example a 6 speed manual challenger 2009 for 10-20k vs double cost for minor increases in power in my opinion I can buy two or three used ones over one 6.4 newer model. 🤗

[@edsneed6573]

Do you happen to have any information on when/if the upgrades for the scatpacks from Dodge Power brokers is going happen ?

[@connorm956]

@Marspeedcars where do they sell a Jeep Grand Cherokee L with A 6.4L in it? Didn’t know they did

[@redpilllife4life198]

Personally I think the 6.1 engine bay looks much better than the 6.4.

[@gonzy7829]

The 6.1 blocks were made in both Mexico and Canada. That determined the thread size for the oil filter.

[@jayjaynella4539]

13:38 shows an Australian SRT, registered in Victoria state.

[@kndli67]

My friend owns a 300 SRT 6.1 with 173,000 engine runs fine but he has some electrical problems is in the shop right now he does have some aftermarket goodies though not saying that the car is the issue at all

[@jameslupkin3266]

7 months ago I bought a 2012 Charger SRT8 superbee 392 with 87,000 miles on it. Less than 1 month after I bought it, the cam and lifters failed. After 2 and a half months of having the motor rebuilt with a bigger cam and MDS delete I then tried having multiple tuners in my area tune the car but no one could get it to stop stalling. After almost $8,500 in repairs within 7 months of ownership I just traded it in for a 2011 Camaro 2SS convertible and am not regretting it. That dodge was the biggest headache and most expensive vehicle I've ever purchased

[@ebk4l365]

6.1 all the way 🙌🏾🤷🏾‍♂️

[@Mainly_Diecast]

The main reason for the lifter issues happens on 6.4 and 5.7, due to the mds system. thats why alot of mopar fans get the mds delete kit, or just tune it out. 6.1 didnt have that issue or any of the manual cars cus they didnt have to switch on and off when cruising. wish that it could have been a recall cus it was such a big issue in the HEMI engines

[@DarkSlayer487]

No. Its not the MDS system. As stated in the video, the 6.1 suffers the same issue but at a much less common rate. The lifters are the issue. Thankfully, Dodge updated the non MDS lifters in 2015 when the Hellcat came out so Manual cars and Hellcats from then until now are more or less cured of that issue. The newer non MDS lifters are commonly referred to as Hellcat lifters. Simply turning off your MDS system will NOT save you. My 2013 SRT Challenger that got a new engine under warranty is proof of that. Its why I got a 6 speed when I ordered my brand new Scat Pack Widebody last year.

[@Vadim_Andr.]

@@DarkSlayer487 this is a problem specifically with the MDS lifters! when people don't add oil, there isn't enough to activate these lifters. I recently disassembled an engine that was sold after hearing a loud ticking sound. all the lifters were in good working order, BUT those responsible for the MDS system were kind of turned around the axis, and the buttons in the center of the lifter on both sides were jammed in the housing - that is, it only works halfway.

[@heartbreakkyle273]

Intake manifold on 6.1 way better

[@Nosmoke2024]

I’ll take the 6.1 over the 6.4 any day. 6.1 is a better built motor with less problems.

[@vincealince_SRT]

With that 6.1, you get less power. But I’ve had four 6.4s. One that I built, definitely all had no issues even with my frequent track use.

[@stevenbrown5210]

I have a 6.4 with zero problems and it has way more power

[@widebody53ad]

Agreed. The 6.1 srts were true old-school muscle. Just a simple V8. No variable valve timing, no cylinder shut off BS. The 6.1 is straight out of the 60s in a good way. I'd rather have that than an extra 50hp.

[@fnafplayer6447]

​@@widebody53adremember they can handle a lot more boost than the 6.1l

[@joshkrause2977]

@@fnafplayer6447pre 2018 392’s cannot handle boost they are not Bge blocks.

[@calid6960]

What modifications would I have to do if I wanted to engine swap a 6.1L hemi and put a 64L in a SRT8?

[@danbusey]

Manual transmission 6.4s are non-MDS like the 6.1s. MDS appears to be a factor in lifter failure.

[@CiboloHemi]

MDS roller failure claim has been debunked. Non-MDS cars also have lifter failure.

[@lb9355]

It's the 5.7 that had issues due to VVT

[@Vadim_Andr.]

@@CiboloHemi no.

[@tylercouture216]

Can the 8 speed be paired to the 6.1. The hellcat has been paired to the 5 speed.

[@midnight347]

It should all bolt up what you gotta worry about is the tuning of the Trans.

[@index6738]

6.4 lifter roller was upgraded with thicker beefier Needle bearings, later production, same Lifters found in Hellcat 6.2. Should give people peace of mind about Lifter reliability and durability.

[@lego4virgo]

From what model year?

[@paulrakis]

Probably 2019 and up. I'm getting a 2023 last call. Hopefully the shakedown.

[@index6738]

@@lego4virgo 2019 onwards. Also standardised block to BGE. Same block for all models including Hellcat. Difference is Painted Color.

[@hostileactual7655]

I get 23 highway and 14 city, 6.4L 2018. I do only have 20K miles on it and I baby that damn thing 🤣🤣🤣

[@adonisjp7466]

So 6.1 or 6.4 which do you guys prefer

[@MarspeedCars]

The 6.1 will always be special. It looks amazing under the hood, and was the first SRT engine. But you can’t argue with the performance of the 6.4 as it’s definitely better in that aspect!

[@darknightbegins85]

Bigger is better

[@ZayNeedsSpeed]

@@MarspeedCars i also love that the 6.1 can hold a good amount of boost

[@Vulcanoes]

6.1 definitely

[@chrisrowe9471]

Very informative about these engine s !

[@ernestosantana4212]

very informative video, can you please provide me the lobe separation angle on both 6.1 & 6.4 camshafts?? i got a lifter failure and probably cam lobe damaged on my 2010 grand cherokee SRT8 6.1L so i have to replace them anyways and contemplating to upgrade to a 6.4 cam/springs if there is any gain by doing it but first need the complete specs for both camshafts which will help me to decide what route to follow, thanks in advance

[@MS-mr4zm]

I’ve always been interested in one of these newer N/A hemis but just scared of Mopar reliability/longevity. Owned many GM & Fords

[@reyperez3424]

I know what you mean but GM aren’t reliable anymore but sometimes you get lucky with them

[@MS-mr4zm]

@@reyperez3424 engines are still good but yeah…a lot of the rest maybe not so Much

[@The1WhoKnowsTheTruth]

2007 Super Bee 0066/1000 Solo Mach X exhaust. Love that car. Oil changes on time and coolant flushes and she purrs. All 6.1 owners Just Keep an ear out for roller lifter noise at 80k.

[@hasansalah6609]

Which intake manifold better for 5.7 2016 challenger rt

[@0to60swiftly8]

I have a 6.1 and the 6.2 Hemi '07 6.1 Jeep SRT8 140k miles daily driven, other than getting 10 mpg and a few electrical issues I've had no major problems. Being a 15yr old Hemi it definitely requires a higher level of regular maintenance otherwise very reliable. AWD launch never gets old. The 6.2 is my other Jeep. it's ridiculous and shouldn't be legal...I passed on purchasing a 6.4 Jeep SRT only because they decided to throw the Hellcat engine in the Jeep Trackhawk

[@johnliberty6779]

I’m considering a 6.1 hemi either the Magnum or Jeep but I’m not sure if these are unreliable or people just beat on them too much.

[@jaywilliams9523]

I have and like the 6.1 but I like the 6.4 as well

[@omphystone8917]

Can you do a modern N/A hemi compared to the old 426 hemi?

[@damascus-ut1ee]

The 6.4s in Manual Challengers did not have the MDS (4-cylinder deactivation mode) IIRC the wrist pins were redesigned somewhere in 2015-2016 as well

[@InkedAquaticsReptiles]

Can you do a video of the 2003-10 Ram 5.7 Hemi engines vs the 2005-10 5.7 Challenger/Charger/300/Magnum engines if you havent already?

[@zacht9447]

I mean Boost is fine on the stock pistons as long as you gap the rings as shown by Holdener's big bang video on a Stock 5.7 he was pushing 20PSI before it blew and it's due to the extreme backpressure of a single turbo that's too small

[@ryanc2927]

I agree w this in lieu of the method engineered of the runners. It’s designed for it even has a similar (but not as low) compression ratio as the hellcat. Even more the fact that procharger demonstrates an install of their blower directly on a red Jeep srt on their website. If my Mazda 2.5 l 3 can handle boost from the factory why can’t it? Lol. I do however like the compare and contrast of why lifter failure may be occurring more on 6.4s as more were produced. Good review

[@zacht9447]

@@ryanc2927 This is nonsense

[@bobberttv8565]

Just shoved a 6.4 in my Nag1 cop car, have to thank the 6.1 my dad brought home to get me into mopars

[@Gwolf888]

LA big block vs Hemi compared 5.9 Magnum V8 to 6.1 Hemi V8 , 5.2 Magnum V8 to 5.7 Hemi V8 engines.

[@cutlasssupreme508]

The only Legendary Engine in This Documentary is The 6.1L.... Respect for the 8 All Day.

[@unstablebobgable]

Great video. How's your Daytona doing?

[@MarspeedCars]

The daytona is doing very well, no issues and runs good so far! Looking to do more upgrades next summer like differential, tires, suspension

[@unstablebobgable]

@@MarspeedCars Glad to hear she is treating you well. Totally one of my favorite cars.

[@MultiSmurf67]

my hemis sound so awesome-two 5.7s and an srt8 challenger 6.1

[@tr3ynag4ta]

15:31 ohh man really? Im just kiddin 🤣🤣

[@sebastienturcotte3325]

Just have add a 6.1 onto my Duster 72 and wait for the running experience... and forget to mention a cam...

[@robbyturbo109]

I like the 6.1 six speed challenger many years of trouble free driving.

[@sHoRtBuSseR]

6.1 was a lot more "raw". Traction control sucked, skid control sucked, torque management was nearly non-existent, and the NAG-1 can hold a ton of power with a proper converter and TCM tune. Drop some good pistons in it, and they'll make a ton of power with boost. Richard Holdener took a stock 5.7 of the same era and made north of 1000hp before breaking a piston. Good video.

[@jerodwolford2743]

So it seems like the stock lifters they use on the NA engines can't handle more than 360ish horsepower. Which is strange because it's not like that power is getting transfered to the lifters. They're not getting the brunt of it. Perhaps they can't handle as aggressive of a cam as these engines have. What I don't understand is why they don't take a look at what gm and ford used in their pushrod engines and follow the same formula. It would make a lot more sense and get rid of a common plague amongst their v8s.

[@joshkrause2977]

The ram 5.7 is 395hp. The lifter issues is mostly in high idle vehicles.

[@Modine.]

I can't pick a side eather. There both Hemis! 👍

[@zanemcfarlane6087]

Yes I got a rear engine 6.1L hemi an love it

[@MrSupermanStrong]

Thank you!

[@JacobSmith-rh2sr]

4:33 is the most beautiful challenger I ever seen

[@bigjoewebb]

My coworker had 1 exactly like this, had a 6 speed and it was tuned....he traded it for a ram truck 🙄🙄(i think his wife wasn't goin for it) 😂 😂 😂 😂

[@johnlacroix1639]

TY,,,,,,WOW incredible very interesting great information super kool ,1st class great info.,, AAAAAAAAAAA++++++++++++ again great video I liked it a lot ,keep up the great work.

[@cameronpannell4077]

6.1 hemi can handle a lot more boost than the 6.4. The entire rotating assembly on the 6.1 is much better. The pistons on the 6.1 aren’t like the 6.4. I know of a stock 220k mile 6.1 that holds a 175 shot of nitrous reliability.

[@fknmonty]

The 6.1 can make almost as much hp as the 6.4 if theyre both have the same mods

[@kayson7469]

My 2008 jeep SRT8 is my old reliable when all else fails and its not a bad daily ether, long road trips just cruising(JUST CRUISING🤨). I get 21 mpg highway🤗

[@heartbreakkyle273]

I still don't understand why the Durango needs the shitty cast iron exaust manifold

[@doolallyproductions7234]

The 6.1 is better to me because it can take boost with out many mods compared to the 6.4 but the new 5.7 makes almost as much power as the old 6.1

[@1uponu705]

Plus the better new 8 speed automatic transmission

[@IhateYoutube]

6.4'sn will take 7lbs of boost all day, and that's a LOT of HP.

[@doolallyproductions7234]

@@IhateKZbin yes but its not as reliable as the 5.7 or 6.1 cus of the compression ratio

[@IhateYoutube]

@@doolallyproductions7234 well, mine has been making 600 at the wheels now for 40 something thousand miles and it's been absolutely 💯 reliable. But I'm not trying to run more boost than the stock rings can handle.

[@chkxpolo]

How would I swap a 6.1 into a 2015+ Charger?

[@ad2142]

Thinking bout buying a 07 srt8

[@mikepoker2108]

You should do a magnum video like 4.7,5.2,5.9,8.3