General Motors’ rivals over at Stellantis have introduced a new twin-turbocharged 3.0L inline-six engine this week capable of producing up to 500 horsepower and 476 pound-feet of torque.
Dubbed the ‘Hurricane’, the new twin-turbocharged inline-six engine is designed to offer “V8-rivalling performance,” whilst also being up to 15 percent more fuel-efficient than larger eight-cylinder motors, Stellantis says. The engine features a deep-skirt cast-aluminum block with an aluminum oil pan, cross-bolted steel main bearing caps, a forged steel crankshaft and forged steel connecting rods. Stellantis says the turbochargers used are “low-inertia, high-flow,” units that are intended to provide more immediate throttle response.
This new I-6 engine will be sold in Standard Output (SO) and High Output (HO) variants, with the former capable of making up to 400 horsepower and 450 pound-feet and the latter good for as much as 500 horsepower and 476 pound-feet. Specific horsepower and torque ratings will vary based on the vehicle, Stellantis said, so these figures are representative of how much power the SO and HO versions of the motor can make in their highest states of tune and not how much they will make in all Stellantis production vehicles where they are used.
“The Hurricane twin-turbo is a no-compromise engine that delivers better fuel economy and an important reduction in greenhouse gases without asking our customers to give up performance,” said Micky Bly, head of propulsion systems at Stellantis.
While Stellantis expects EVs to account for 50 percent of its global sales by 2030, Bly says internal combustion engines like the Hurricane “will play a key role,” in the automaker’s product portfolio for years to come. The automaker did not mention which vehicles the Hurricane engine will be offered in, but it did say the first products utilizing the powerplant will hit the market later this year. We imagine the SO version of the engine will replace the automaker’s naturally aspirated 5.7L and 6.4L HEMI V8 engine in certain nameplates where V8 performance is not as important, like the Jeep Grand Wagoneer and Dodge Durango, for example.
Subscribe to GM Authority for more GM competition news and around-the-clock GM news coverage.
Comments
Great job by them. The Wagoneer is a big hit.
I just wanna see a Gladiator with the new I6. It can be the standard output model, idc.
That would be nice. I agree I’d like to see that to.
I cannot believe I am typing but the new Grand Cherokee and Wagoneer interiors make Cadillac interiors besides the Shade look like a joke let alone Chevy/GMC.
GM needs to keep making better interiors….it is no longer an option not to.
There is just way too much competition out there.
Exactly. I got to see a grand wagoneer in person several weeks ago the guy was nice enough to open the door and let me sit inside. The interior was amazing and don’t get me started on the McIntosh audio system it sounded great.
If they do this, i see no reason not to keep the hellcat around as halo. It could take the old viper v10’s spot. But i guess full electric will be the range topper soon.
I was wanting to see what GM would do. Don’t get me wrong the 6.2 is a great engine but it’s been out for awhile it seems and not a whole lot done since. I’m referring to the LT1, other than DFI.. I know their focus is all electric cars and all that but please do something for the rest of us.
GM Powertrain division was gutted a few years back. It doesn’t even exist as it did previously. Mostly focused on the ‘lectrics.
Don’t expect anything halo or aspirational out of GM ICE.
GM powertrain isn’t gutted. The “EV” division was hired with government grants and is mostly diversity hires. The GM powertrain division hasn’t had the glam light, but hasn’t been idle either. They’ve developed a host of new engine in the past 5 years, the LT5, L8T, LT2 and ZZ638. Granted those are all engines based on previous platforms, but they also have the all new 3.0 Dmax, the 2.7 turbo and the up and coming LT6 for the corvette Z06. Rumors are they are going to release the new generation of small block next year, and it will be insane. The problem is everytime something leak out about this project, the source gets squashed as GM corporate and thier diversity hires don’t want you thinking they are not diverting from EV’s
Father is former GM Powertrain, retired. Trust me, it’s been gutted. Everything is variations on a theme from here on out until forced electrics.
3.0L diesel is basically an Italian design that was already in the works using VM Motori before GM jettisoned them. The 2.7L L3B definitely is an interesting engine with some very advanced tech — but I’m not sure even GM knows why it exists, or needs to.
Pure nonsense about the “diversity hires” at GM propulsion. Turn off the Fox News and go for a walk.
Why would GM do something like this? I know I may be one of the few here, but this new dodge motor isn’t impressive at all…. Not sorry. No sir
These specs…. Let’s be honest….. barely keep up with older engines currently on the market. The standard output (SO) of 400 hp, 450 tq is only achieved on premium fuel and matches horsepower of the Nissan endurance engine and barely beats the hemi…. A decade old engine. They could gas be done that by bringing the hemi up to snuff way easier. Considering the hemi displaces between the 5.3 and 6.2, a DI hemi should pull 420hp/440TQ. Given the LT2 already makes 500HP a 6.4 hemi could easily surpass the High output version without that abysmal 9.4:1 compression ratio and screaming high rpm in the HO.
This is just proof that Stellantis corporate doesn’t listen to their engineers and mandate a smaller turbo engine because it’s following “fod f150”
Also, what is the 15% increase in economy relevant to? If it’s the standard hemi, then this engine is pointless. I can get 15% better economy and 395 hp out of the hemi Etorque
Chevy already has shown that a small turbo engine (the 2.7) doesn’t get any better economy than a modern V8. As a 4 cylinder they are cheaper….. the 5.3 is still cheaper than the 2.7 eco turd, but doesnt advance performance. Looks like ram isn’t on my list of trucks.
You spew all these stats but missed the single stat that fundamentally drives all these engines: MPG.
(Two other stats that are driving new engines are g NOx/mi and g PM/mi, but non-engineers don’t get that. That big honkin CAC in the picture on the left of the engine is in a large part for NOx)
Jake: I may be the only one, but I agree with you. The true MPG will never be 15% better like they say. About the only thing I picked up on that may be better is the lower emissions over the V8 counterpart. But with electric being the path all are on (no matter if you agree with it or not), why bring this out now? They should just put that investment money into some actual product for Chrysler and just make improvements to the current ICE line.
Well and couldn’t they get more than 15% out of the hemi block by adding multi-air and direct injection? That and gobs of power. Why take 2 steps back to the scrap yard and build up a much smaller engine with turbos? Especially when turbos are known to guzzle gas. Nissan was supposed to get 30% better MPG out of the VC turbo. Epa testing barely returned 10# better. The Chevy 2.7 is barely keeping place with the 5.3…… a much older engine. Ford is known for exaggerating their economy numbers out of the ecoboost. Terrible calls coming from the top down, likely not from Europe as well.
This engine isn’t cheap also, it’s an upgrade over the standard Hemi on some models.
It would seem that this engine is an interim solution of obtaining lower emissions and better mileage figures over the Hemi engines. Add hybrid or plug in to the mix and this powertrain will far exceed the current V8 lineup. Apparently they plan on keeping this new L6 turbo around for a while otherwise wouldn’t have invested in it
As for the regular vs eTorque Hemi’s mileage numerous tests have compared the two and their is not a 15% improvement on the latter. In fact a friend has an eTorque Hemi 4X4 with the std gears and is barely able to even get 20 on straight highway drives going 70 MPH which is 2 less than the rating!
I agree with you too Jake. If auto engineers would throw their effort into further developing their current v8s instead of coming up with trashy 6 and 4 cylinders imagine what kind of engines we could have!
Travis, GM has no reason to replace the 6.2 when it’s engines like this that the competition keeps making 🙄. The 6.2 is even cheaper to make than the ecoboosts, and weights the same as the EB 2.7. It’s costs has been solely due to its exclusivity. GM should just offer it in the LT trim as the answer to this engine.
😆🙄🙄🙄 I just commented on that they haven’t done much since. Never did I say I wanted a twin turbo 6 to replace the 6.2… Everything you mentioned I already know. However if they did offer a online 6 turbo option I wouldn’t be disappointed as long as they don’t try to rid the 6.2.
I absolutely love inline six engines.
BMW is by miles the best one I have ever driven.
Monolos,
I agree. A BMW straight six is a delightful engine and it’s naturally velvety smooth. Based on my experience with BMW engines and knowing of the rock-solid durability of the old online Jeep 4.0, I find this new Stellantis inline six to be an exciting development. Plus, I’m so sick of hearing about EVs already. An EV will never be able to match the joy of commanding a smooth, high revving BMW engine paired with a clutch and gearbox.
@Ci2Eye
While I agree that driving an inline six is great and obviously a V8 is a V8 HAHA
The World has spoken and BEV’s are coming and are coming much faster than most people realize. It will not make any sense for Legacy Auto to have two completely different R&D Departments, two completely different Factories, two completely different Suppliers, two somewhat different type of workers all while STRICTLY BEV Automakers are ONLY working and producing BEV’s around the World. It will cripple them in no time. They all must switch and do so ASAP or die a very slow and painful Death. I am very happy as a GM fan that they might become second only to Tesla because they are going All In somewhat Early on. The VW Group did so first but is trying to utilize makeshift ICE Platforms instead of All New from the Ground up BEV Platforms like GM is doing.
I believe ICE will remain but will do so in Niche applications such as this, meaning Tahoe and HD Trucks.
China is coming and if you see some of the BEV’s they are producing it will blow your mind. We need to keep those Automakers at bay on our shores for as long as possible to allow our Home Teams some time to try and catch up so not to go Bankrupt. That is at least my opinion.
We shall see.
ANY in-line six offers smoothness due to the inherent qualities of the configuration. Chevy 292. Studebaker Skybolt 6. MoPar slant-6s in every displacement they made them. Ford’s 240 (later 250 I think) 7-main 6 that did duty in tens of thousands of taxicabs. The Chevy car in-line 6 in various sizes. I have driven them all and all were smooth as silk. This is not to mention the Jaguar in-line 6s. Just amazing.
GentleGrizzly,
Exactly right. I wasn’t implying that BMW had a lock on smoothness but rather that an inline six engine is inherently smooth and given that BMW stayed with the design after others moved on, they’ve been one of the only makers still selling the configuration and offering buyers that velvety experience. Of course compared to the old engines you speak of, BMW has a free-revving DOHC version with all of the modern engine technology which makes it especially enjoyable.
Good for Chrysler but I’ll pass with a naturally aspirated or twin turbo V8.
Your all forgetting GM’s biggest downfall, MARY BARRA, get rid of it before it totally destoys GM.
Lol, that honor gose to Rick Wagoner, you know the CEO that mis-manage GM into BK.
So Mary Barra is an “it” now? Man, the people on here I swear.
You know how she identifies how?
Who cares….who will Stellantis have to merge with in the next five years just to stay in business!
I don’t know, but, I am willing to bet Stellantis will still be making cars here, and by then GM will be solely a car importer.
The comparison to the turbo engines goes like this,
2.7t GM: base/work engine for trucks, mid-performance for cars.
2.7tt Ford: upgrade engine for trucks
3.0 STA: performance upgrade for all vehicles, on par to Ford 3.5 EB and GM 6.2.
IMO how GM could respond is offer a more powerful truck h.o. 6.2 on the table around 490 hp and still offer the standard 420 hp 6.2., we’ll see when the next small blocks are offered.
All they need to do now is, pair up a couple of the I6 blocks into a V-12 and bring back the Viper as mid-engine 1000+ hp Corvette killer.