500+ hp Stellantis ‘Hurricane’ I6 previews a world without Hemis

Soon after yrs of rumored development, Stellantis has unveiled its new six-cylinder engine spouse and children. The 3.-liter, twin-turbocharged “Hurricane” I6 will give V8 electric power, forced induction torque and six-cylinder performance in a offer built to match into any of the firm’s North American rear-wheel-push platforms. 

What is “V8 power,” specifically? Very well, in common output guise, the new I6 cranks out more than 400 horsepower (the distinct determine will differ by application) and 450 pound-toes of torque, while the substantial-output variant is superior for a lot more than 500 horses and 475 lb-ft. The last figures will be dependent on the application. We will help you save you a small legwork: In latest Ram, Jeep and Dodge items, the 5.7-liter Hemi tops out at about 395 hp and 410 lb-ft, give or consider, and the 6.4-liter all-around 485 hp and 475 lb-ft. 


This is a clean-sheet style and design that is only linked to the company’s turbocharged four-cylinder by some widespread measurements. The I6 is solely direct-injection (no hybrid/port-injection listed here) and the two I6 variants share 96 prevalent parts, which include the block and oil pan style and design. The differences are uncovered in their internals, consumption plumbing, valvetrain parts and the turbochargers by themselves. Stellantis is not but prepared to share specs or supplier info for the turbos but says announcements will come from its partners soon. 

The conventional-output I6 has a compression ratio of 10.4:1 and revs to 5,800 rpm. It will run on frequent gas, albeit with decreased effectiveness 91 octane is suggested for greatest output. The significant-output variant has a compression ratio of 9.4:1 and will rev to 6,100 rpm. That 1 will demand top quality.

The new I6’s positive aspects go past simple power output. Each and every Hemi household motor now in creation is based on an iron block design, so they’re heavy. The aluminum-block I6 shaves excess weight off the complete motor package, even if some of that will get extra back many thanks to the turbos and their related plumbing. The conventional-output I6 weighs 430 kilos, Stellantis engineers informed us the substantial-output adds just yet another 11. Fully dressed 5.7-liter V8s are in the 550-560-pound ballpark, and 6.4-liters near in on 600 kilos. 

You could be asking yourself, “Why a clear-sheet gasoline engine now, when the field is going toward battery-electrics?” A legitimate inquiry, and a person Stellantis was organized to tackle. Although the firm will be pivoting to electrification about the future decade, it won’t be instantaneous. This engine family was engineered with electrification (hybrid or plug-in) in mind, nevertheless Stellantis would not say when we are going to see those people hybrids. Assume of this as a bridge concerning ICE and BEV.

In actuality, the firm’s propulsion crew stayed very restricted-lipped about what to be expecting in phrases of purposes. In useful terms, it will in good shape any where the 3.6L Pentastar V6 or Hemi suits, presented you might be speaking about RWD platforms. For those who want to do their have measuring, the standard output Hurricane steps 33.4 inches x 28.7 inches x 32.7 inches. The large-output checks in at 33.9″ x 29.” x 33.4″.

That mentioned, do not hope Stellantis to get started chucking the 3.6-liter in favor of the 3.0TT in its mainstream cars. Just since it can in shape will not indicate Stellantis will do it glance how lengthy it took us to get a Hemi in a Jeep Wrangler. And do not hope it to pop up in any Stellantis goods built overseas, possibly. This engine family was developed primarily for North The united states only American-crafted export versions will be in the operating for the time becoming. 

We will never have to wait around prolonged to obtain out just the place it will look. Stellantis last but not least verified rumors that the engine has been in generation due to the fact November and claims the very first products to make use of it will materialize in a issue of months, not years. We are supposed to see the 1st just one — a Jeep, and the smart money is on the new extended-wheelbase Wagoneer — at the New York Worldwide Auto Exhibit in April. 

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