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

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  • Опубликовано: 16 май 2024
  • Today we are comparing two of the SRT engines, the 6.1L and 6.4L Hemi V8. The 6.1 was made from 2005-2010 before it was gone and replaced by the 6.4L Hemi. It was SRT8 specific, found in the Chrysler 300, Dodge Charger, Challenger, & Magnum, and Jeep Grand Cherokee. It had great power and performance with 420-425 horsepower. After that, the 6.4L Hemi V8 become a Mopar fan favorite over the past decade, found in performance-based vehicles like the Dodge Charger and Challenger Scat Pack, Chrysler 300 SRT8, Durango SRT, 392 and Jeep Grand Cherokee SRT.
    To analyze these differences, we will look at all of the specs of each, like which engines go into which vehicles, the power output, MDS and transmission, engine block and rotating assembly, cylinder heads and camshaft specs, intake and exhaust manifolds, major problems, and seeing which engine is better overall!
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Комментарии • 227

  • @MixedToofer
    @MixedToofer 8 месяцев назад +11

    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_
      @eeZyy_ 2 месяца назад

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

  • @hpjunke
    @hpjunke 5 месяцев назад +11

    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
      @pmp2559 4 месяца назад

      Did you go auto or manual?

    • @hpjunke
      @hpjunke 4 месяца назад

      @@pmp2559 Has the 545rfe 5spd auto

  • @G6.1
    @G6.1 10 месяцев назад +8

    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.

  • @ryandickey8027
    @ryandickey8027 Год назад +29

    Mopar or no car! Love your videos man

    • @MarspeedCars
      @MarspeedCars  Год назад +8

      Thanks for the support man!

    • @JacobSmith-rh2sr
      @JacobSmith-rh2sr Год назад +2

      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
      @tespenkr9924 Год назад +2

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

  • @troybjones4
    @troybjones4 Год назад +77

    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
      @MarspeedCars  Год назад +18

      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
      @shakarussanders9911 Год назад +6

      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
      @NitroDonkey117 Год назад +3

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

    • @eugenesmithjr9063
      @eugenesmithjr9063 Год назад +1

      srt magnums are cool af

    • @hdhfjfkeir5291
      @hdhfjfkeir5291 Год назад

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

  • @knowplay3258
    @knowplay3258 Год назад +9

    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
      @knowplay3258 Год назад

      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
      @richey1794 Год назад

      Gratitude for sharing!

    • @knowplay3258
      @knowplay3258 Год назад

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

    • @knowplay3258
      @knowplay3258 Год назад

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

  • @LoganRoberts1320
    @LoganRoberts1320 Год назад +7

    Great video as always!

  • @uchiha_itachi1507
    @uchiha_itachi1507 Год назад +11

    6.1 all the way💪

  • @rikkatheconure2395
    @rikkatheconure2395 Год назад +8

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

  • @1uponu705
    @1uponu705 Год назад +1

    I like these type of vids. Keep it up!

  • @mr84ttop34
    @mr84ttop34 Год назад +13

    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
      @hemiboy9860 9 месяцев назад

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

    • @mr84ttop34
      @mr84ttop34 9 месяцев назад

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

    • @ectomorphnranger5165
      @ectomorphnranger5165 6 месяцев назад

      Did you end up swapping it?

  • @FlintMarshall
    @FlintMarshall Год назад +1

    Thanks for this info. Much appreciated!

  • @IhateYoutube
    @IhateYoutube Год назад +13

    Fantastic video! The issue with boost on the 6.4's really isn't the material of the pistons there are tons of OEM boosted engines running
    Hyperutectic slugs. The problem is the tight ring gaps, as the bores heat up the rings try to expand and they can't and when that happens
    they pop the top of the piston off because the top ring land is pretty thin on stock 6.4 pistons.
    With good tuning a 6.4 can run 7 lbs safely. I've been running a 2.3L Magnuson on my 6.4 since 40k miles and I just turned 80k miles.
    My engine was tuned very conservatively by Hemifever and it's been rock solid. But yes, if you want to run big boost then you will want
    to upgrade to T6 forged slugs and also a good idea to swap to some billet 4340 rods like those from Molnar.

  • @alansoler2653
    @alansoler2653 Год назад +1

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

  • @dexburwell
    @dexburwell Год назад

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

  • @dgeo0392
    @dgeo0392 Год назад

    Thank you. Another awesome video! 🙂

  • @brianturney3209
    @brianturney3209 Год назад +27

    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
      @timbrwolf1121 Год назад +2

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

    • @shawne7228
      @shawne7228 Год назад +2

      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
      @kingjay3301 Год назад

      Ls3 swap it

    • @phantom0456
      @phantom0456 4 месяца назад

      2.7 swap it!

  • @crebbsjd
    @crebbsjd Год назад +10

    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.

  • @ernestosantana4212
    @ernestosantana4212 Год назад +1

    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

  • @hibco3000
    @hibco3000 Год назад +2

    Gotta love those big American V8s. Good video very informative

  • @cogicmj
    @cogicmj Год назад +4

    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.

  • @gokuthatmadethebeat
    @gokuthatmadethebeat Год назад +22

    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
      @3rdgenaddict 10 месяцев назад +2

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

    • @dukenukem5753
      @dukenukem5753 8 месяцев назад +2

      @@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.

  • @edsneed6573
    @edsneed6573 Год назад +2

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

  • @brycejames2127
    @brycejames2127 Год назад +11

    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
      @fish_stick4007 Год назад

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

  • @cutlasssupreme508
    @cutlasssupreme508 Год назад +7

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

  • @damascus-ut1ee
    @damascus-ut1ee Год назад +2

    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

  • @murdered4269
    @murdered4269 Год назад +8

    6.1’s still better cuz it can actually handle boost

  • @shippybs
    @shippybs 11 месяцев назад +3

    Happy 6-1! They rock! It’s worth noting that the 6.1 cars had 255 rear tires from the factory. An upgrade to a 275 and a tune puts the 0-60 in the 4.2-4.5 range. Not to shabby

  • @blackericdenice
    @blackericdenice Год назад +1

    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.

  • @Los_220
    @Los_220 14 дней назад +1

    Just got a 6.1 jeep I love it

  • @jtc1964x
    @jtc1964x Год назад +6

    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
      @timtresch4848 Год назад

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

  • @1967davethewave
    @1967davethewave 7 дней назад

    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!!!

  • @NewtownVids
    @NewtownVids Год назад +5

    😊👍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.

  • @srt8bean330
    @srt8bean330 Год назад +3

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

  • @rashadthompson8830
    @rashadthompson8830 Год назад +4

    6.1 is a perfect build for a 426 stroker

  • @MrPFFlyer
    @MrPFFlyer Год назад +11

    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.

    • @WhiteboyybuiltYT
      @WhiteboyybuiltYT Год назад

      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
      @shippybs Год назад

      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.

  • @300ddsrt3
    @300ddsrt3 Год назад

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

  • @MrSupermanStrong
    @MrSupermanStrong Год назад

    Thank you!

  • @calid6960
    @calid6960 Год назад +1

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

  • @tylercouture216
    @tylercouture216 Год назад +3

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

  • @omphystone8917
    @omphystone8917 Год назад +1

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

  • @hasansalah6609
    @hasansalah6609 Год назад

    Which intake manifold better for 5.7 2016 challenger rt

  • @douggotley7169
    @douggotley7169 Год назад +6

    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
      @pmp2559 5 месяцев назад

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

  • @torrinscichlids
    @torrinscichlids Год назад

    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?

  • @unstablebobgable
    @unstablebobgable Год назад +1

    Great video. How's your Daytona doing?

    • @MarspeedCars
      @MarspeedCars  Год назад +1

      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
      @unstablebobgable Год назад +1

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

  • @heartbreakkyle273
    @heartbreakkyle273 Год назад +3

    Intake manifold on 6.1 way better

  • @Myfamily1964
    @Myfamily1964 19 дней назад

    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.

  • @Nosmoke2024
    @Nosmoke2024 Год назад +38

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

    • @vincealince_SRT
      @vincealince_SRT 3 месяца назад +6

      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
      @stevenbrown5210 3 месяца назад +1

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

    • @widebody53ad
      @widebody53ad 2 месяца назад +3

      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.

  • @ebk4l365
    @ebk4l365 Год назад +3

    6.1 all the way 🙌🏾🤷🏾‍♂️

  • @trillsrt8
    @trillsrt8 Год назад +6

    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
      @slowgoat6089 Год назад +6

      U got ripped off

    • @trillsrt8
      @trillsrt8 Год назад

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

  • @6reen6uy
    @6reen6uy Год назад +1

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

    • @IhateYoutube
      @IhateYoutube Год назад +1

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

    • @6reen6uy
      @6reen6uy Год назад +1

      Thanks I’ll have a look, sounds crazy

  • @niojataj
    @niojataj Год назад +4

    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.

  • @williamwhite9767
    @williamwhite9767 Год назад +11

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

    • @MarspeedCars
      @MarspeedCars  Год назад +10

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

    • @joshkrause2977
      @joshkrause2977 Год назад

      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
      @williamwhite9767 Год назад

      @@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
      @str8profit81 Год назад +1

      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

    • @WhiteboyybuiltYT
      @WhiteboyybuiltYT Год назад

      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

  • @talentscout5135
    @talentscout5135 Год назад +2

    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. 🤗

  • @redpilllife4life198
    @redpilllife4life198 Год назад +3

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

  • @jaywilliams9523
    @jaywilliams9523 Год назад +3

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

  • @crazyQ58
    @crazyQ58 Год назад +2

    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

    • @kenbroux12
      @kenbroux12 2 месяца назад +1

      What about transmission?

    • @crazyQ58
      @crazyQ58 2 месяца назад

      ​@@kenbroux12 nag1 5speed can handle a decent bit of horse when you start hitting around 700+ to the wheel you gotta start worrying

  • @rooh5825
    @rooh5825 Год назад +2

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

  • @MS-mr4zm
    @MS-mr4zm Год назад +3

    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
      @reyperez3424 Год назад

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

    • @MS-mr4zm
      @MS-mr4zm Год назад

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

  • @idothingz9112
    @idothingz9112 Год назад +1

    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
      @DarkSlayer487 Год назад +2

      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.

  • @cmdrbillpaxton4302
    @cmdrbillpaxton4302 Год назад +6

    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
      @index6738 Год назад

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

    • @cmdrbillpaxton4302
      @cmdrbillpaxton4302 Год назад

      ​@@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?"
      ruclips.net/video/8lj4mLhAI4Y/видео.html

    • @index6738
      @index6738 Год назад

      @@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.

  • @davehicks6836
    @davehicks6836 11 месяцев назад +1

    6.1 LOVE BOOST
    I know several running 9 to 11 psi on stock lower ends

  • @cameronpannell4077
    @cameronpannell4077 7 месяцев назад +2

    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.

  • @johnliberty6779
    @johnliberty6779 11 месяцев назад +1

    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.

  • @captainboose8788
    @captainboose8788 Год назад +3

    Love my good ol 6.1, she sure looks nice in the video 😏😉

  • @The1WhoKnowsTheTruth
    @The1WhoKnowsTheTruth 11 месяцев назад

    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.

  • @johnlacroix1639
    @johnlacroix1639 Год назад +1

    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.

  • @0to60swiftly8
    @0to60swiftly8 Год назад

    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

  • @n.elliott9122
    @n.elliott9122 Год назад +1

    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!

  • @mikepoker2108
    @mikepoker2108 Год назад

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

  • @kndli67
    @kndli67 Год назад +3

    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

  • @ad2142
    @ad2142 Год назад +1

    Thinking bout buying a 07 srt8

  • @chkxpolo
    @chkxpolo Год назад

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

  • @danbusey
    @danbusey Год назад +6

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

    • @CiboloHemi
      @CiboloHemi Год назад

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

    • @lb9355
      @lb9355 Год назад

      It's the 5.7 that had issues due to VVT

  • @Modine.
    @Modine. Год назад +1

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

  • @themojogt
    @themojogt Год назад +3

    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

  • @larryg1082
    @larryg1082 Год назад +3

    6.1 BETTER THAN 6.4 ALL DAY But 7.0 BEST FROM THE 6.1

  • @fknmonty
    @fknmonty 5 месяцев назад +2

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

  • @hostileactual7655
    @hostileactual7655 Год назад +1

    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
    @adonisjp7466 Год назад +9

    So 6.1 or 6.4 which do you guys prefer

    • @MarspeedCars
      @MarspeedCars  Год назад +17

      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
      @darknightbegins85 Год назад +6

      Bigger is better

    • @ZayNeedsSpeed
      @ZayNeedsSpeed Год назад +2

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

    • @Vulcanoes
      @Vulcanoes Год назад +8

      6.1 definitely

    • @chrisrowe9471
      @chrisrowe9471 Год назад

      Very informative about these engine s !

  • @jayjaynella4539
    @jayjaynella4539 Год назад

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

  • @woahmomo
    @woahmomo Год назад

    fire

  • @robbyturbo109
    @robbyturbo109 Год назад

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

  • @Chipsandmayo-OG
    @Chipsandmayo-OG Год назад

    So is it even worth buying a hemi 6.4l? Or will it just blow up from the hemi tick

  • @zacht9447
    @zacht9447 Год назад +2

    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
      @ryanc2927 Год назад

      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
      @zacht9447 Год назад

      @@ryanc2927 This is nonsense

  • @index6738
    @index6738 Год назад +7

    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
      @lego4virgo Год назад +1

      From what model year?

    • @paulrakis
      @paulrakis Год назад +3

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

    • @index6738
      @index6738 Год назад +3

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

  • @sebastienturcotte3325
    @sebastienturcotte3325 Месяц назад

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

  • @Gwolf888
    @Gwolf888 10 месяцев назад +1

    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.

  • @sHoRtBuSseR
    @sHoRtBuSseR Год назад +2

    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.

  • @JacobSmith-rh2sr
    @JacobSmith-rh2sr Год назад

    4:33 is the most beautiful challenger I ever seen

    • @bigjoewebb
      @bigjoewebb Год назад

      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) 😂 😂 😂 😂

  • @jameslupkin3266
    @jameslupkin3266 Год назад +2

    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

  • @tr3ynag4ta
    @tr3ynag4ta Год назад

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

  • @jerodwolford2743
    @jerodwolford2743 Год назад +2

    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
      @joshkrause2977 Год назад +1

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

  • @laszlosokolai2858
    @laszlosokolai2858 Год назад

    Difference between the 5.7 and 6.1
    Differences in the engines....
    The Block is different
    The Cam is different
    The Intake Manifold is different
    The Heads are different
    The Exhaust manifolds are different
    I think that covers the majors.
    In other words the 5.7 and 6.1 are very different.
    Oh, the Throttle body...... it's the same :)
    The quoted HP is at the crank, not at the wheels.
    To acheive the 6.1L HP from your 5.7L you'd be at least looking at heads and a cam swap, exhaust, and tuning.

  • @SuperSnakePlissken
    @SuperSnakePlissken Год назад +1

    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
      @douggotley7169 Год назад

      This comments makes me want a vasectomy. Kids suck man

    • @SuperSnakePlissken
      @SuperSnakePlissken Год назад

      @@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.

  • @marcgranger4786
    @marcgranger4786 Год назад

    I have a 2010 srt8 and I always say as far as interior and body Dodge (or most American cars in general) are Cheap as all Fxxk. The engine however has never given me a single issue

  • @dorianleclair7390
    @dorianleclair7390 Год назад

    Man I want a challenger with a 6.1 so bad.

  • @fredmoore7560
    @fredmoore7560 Год назад

    Yes I have 09 srt and at 140 k miles I had to replace both cam shafts and lifters 3800 dollar cost one owner

    • @mvc2177
      @mvc2177 11 месяцев назад

      Currently looking at an 06 Chrysler srt8 with 140k miles, kind of afraid I’ll buy it and shortly after rebuild the cam and lifters. What noises or symptoms did you have that you recommended I look out for?

  • @jerryrivera7704
    @jerryrivera7704 Год назад +1

    Raced one with my MUSTANG coyote.... Let's just say he got humbled 😁

  • @heartbreakkyle273
    @heartbreakkyle273 Год назад +1

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