Best Mopar V8 Engines Ever: 5.7L Hemi

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[brettslater]

Also known as Valvetrain Gobbler. One mean camshaft eating machine.

[shippybs]

Fun fact: while developing a 5.7 hemi, the engineers went back and talk to the original 426 team from the 60’s and early 70’s. The team specifically recommended some of the changes they would’ve made to make it a more street able engine were to add a quench pad to the top of the chamber and raise the cam in the block to improve valve, angle, geometry to push rod and shorten the length.

People miss the fact that the most important part of the hemi’s design is the fact that the valves are opposed this allows for a very straight port runner path for the airflow.

People need to get over the fact that it’s not a perfect hemispherical chamber and neither was the 426 actually. The big chambers are difficult to get a good compression ratio without domed pistons. Domed pistons are shit for flame travel at lower engine speeds like where most cars and trucks operate 90% of the time.

Also the mds system started with the cars in 2005 not 2009.

[guadalupedeleon]

Besides the mds solenoids failing, the oil solenoid being clogged, the water pump bearing giving out, the exhaust bolts breaking off, the cam shaft being chewed up, 16 spark plugs and the valve springs breaking. It's a great engine.

[zachariahmorris]

6.1L Hemi was a massively overlooked workhorse.

[busterscrugs]

Had an 04 Durango with the 5.7L hemi. It was great until 80k when someone hit it. Also it had developed a nasty lifter tick, so maybe it was a blessing it got written off lol.

[DavidGarcia-vhul]

I still have my 2006 Ram 1500 HEMI and it's a solid truck. I bought it back in September of 2006 brand new. I change the oil about every 2, 600 miles and it has only 82k orginal miles. Purrs like a kitten.

[DCecil]

I have a 2003 Dodge Ram with the 5.7L Hemi. I absolutely love it!

[confuse]

The reason the combustion chamber is different is because emissions. The old hemi was very difficult to build compression without a dome and a dome is a power and emission killer. It still has opposing valves with center spark plugs with 'squish' on the side vs. wedge heads.
The 5.7 makes as much horsepower as the old 7.0 plus it can idle and the air exiting the engine is cleaner than the air entering (at least in cities like LA). Keep in mind the old 426 was rated in gross HP, not net like modern engines. So yeah more power, better efficiency and still a pretty strong block.
Oh, and only the aluminum headed hemis of the 60s had dual plugs. All the modern ones have dual plugs now.

[RTby]

Been tellin all these new mopar kids this for yrs.. it also has different valve placement than the og hemis

[williambrewer]

Cylinder deactivation is a great way to kill an engine

[ItsCleto]

Got a 2015 Durango RT. Almost 80k, no noises whatsoever, no burning oil, no leaks.

[terrabnadia]

This marketing scheme definitely worked like crazy. My grandpa to this day is a die hard Ram fan and thinks Hemi’s are the best engine there ever was for performance and thinks they’re the same Hemispherical head engines from the 60’s

[justinreel]

I have an eagle hemi in my grand Cherokee and it runs like a top. It’s a 2011 and has 175000 miles

[austink]

My 1981 Kawasaki kz440 had hemispherical pistons. Shoulda put a badge on it.

[randalwarkentin]

Hemi, Best engine I've ever had --- period

[manuelmoraila]

Shoutout from Phoenix, AZ. keep on making the best engine/car info videos

[honkhonkler]

My brother got a manual Challenger Scat Pack specifically to avoid cylinder deactivation. Showing support for the manuals was just a bonus.

[Matp]

I had a RCSB dakota RT few years ago. I have a 2wd hemi RCSB 2016 ram now and it would spin circles around my dakota.

[vf]

I had a 1973 charger 340 magnum. And I had a 1974 roadrunner with the 360. Granted they weren’t hemi cars but my 2013 challenger with the 5.7 is the best car I’ve owned. Unless you’ve driven and owned one…. Just a fun car to drive.

[ianmartinez]

Got a 2500 5.7 300plus k miles still going