Chevy Is Bringing Back the 350, 400, and 409 V8—And Enthusiasts Are Losing Their Minds
If you grew up reading hot rod magazines, memorizing displacement figures the way other kids memorized baseball stats, or if the mere mention of a 409 makes you hum a Beach Boys tune, General Motors has some very good news for you. Chevy is officially reviving three of the most iconic V8 displacements in American automotive history: the 350, the 400, and the 409. These aren't retro-themed gimmicks or marketing stunts. These are all-new, next-generation small-block V8 engines built for the 2027 model year—and they're already turning heads before a single one has rolled off a dealer lot.
Let's break down what GM is bringing to the table, what vehicles will get these engines first, and why this moment feels like such a significant milestone for V8 lovers everywhere.
A New Generation of Small-Block V8s Has Been Years in the Making
The story begins back in 2023, when General Motors confirmed it was developing a new generation of small-block V8 engines. At the time, the auto industry was deep in its EV pivot, and many enthusiasts feared that traditional internal combustion engines were being quietly phased out. GM's announcement was a shot of adrenaline for the performance community—proof that the company wasn't ready to abandon the V8 just yet.
After a couple of years of carefully managed hype and steady trickles of information, the first concrete reveal arrived with the announcement of the 2027 Chevy Corvette Grand Sport. That car carries the new LS6 engine, a 6.7-liter, naturally aspirated V8 producing a remarkable 535 horsepower. If you do the math, 6.7 liters works out to approximately 409 cubic inches—a number that carries enormous weight in Chevy's storied engine history.
The 409 Is Back—In Spirit and in Displacement
The original 409 cubic-inch engine was a big-block V8 that helped define American muscle in the early 1960s. It powered everything from full-size Chevrolets to race cars, and it became permanently embedded in pop culture when the Beach Boys immortalized it in song. The new LS6 is, of course, a completely different animal—a modern small-block design with nothing in common with that vintage big-block beyond the displacement figure—but that number alone is enough to send a thrill down the spine of any serious Chevy fan.
At 535 horsepower, the new LS6 reportedly delivers more torque than any factory naturally aspirated V8 ever fitted to a Corvette. That's a meaningful claim for a car that has always been defined by its relationship with the V8. The 2027 Corvette Grand Sport is positioned as the "Goldilocks" spec—not as track-focused as the Z06, but more serious than the base Stingray—and the new LS6 gives it a genuine performance identity of its own.
The 350 and 400 Are Coming Back for Truck Duty
The Corvette gets all the glamour, but the story gets even more interesting when you look at what GM is doing for its truck lineup. Two additional displacements are joining the new small-block family, and both carry names that resonate deeply with American car culture.
First up is the 5.7-liter V8—which works out to 350 cubic inches—set to debut in the 2027 Chevrolet Silverado half-ton. This engine will replace the outgoing 5.3-liter L83 V8 that has served as the volume workhorse in GM's truck lineup for years. The 350 is arguably the most beloved V8 displacement in history. It powered everything from muscle cars to family station wagons to Corvettes across multiple generations, and its return as a modern truck engine feels like a homecoming.
The second addition is a 6.6-liter V8—translating to 400 cubic inches—which will step in to replace the current 6.2-liter L87. Note that while the naming convention might suggest otherwise, the "400" is technically 6.6 liters rather than 6.7, so it occupies its own distinct displacement. According to Chevrolet, this 6.6-liter V8 is set to become the most powerful naturally aspirated V8 available in a production pickup truck. That's a serious performance statement for buyers who need capability without forced induction.
Same Block, Bigger Holes—The Classic GM Philosophy Lives On
One of the most satisfying elements of this entire story is how GM is building the new engine family. Both the 350 and 400 truck engines are based on a common architecture—the same fundamental block design with different bore and stroke combinations to achieve the respective displacements. As one GM engineer put it with characteristic bluntness: "same block; bigger holes." That philosophy is as old as the small-block Chevy itself, and it speaks to an engineering elegance that performance enthusiasts have always appreciated.
This modular approach also has practical advantages. Sharing architecture across displacements simplifies manufacturing, eases parts compatibility, and creates a platform that can be tuned and upgraded more efficiently. It's a strategy GM has used successfully for decades, and applying it to this new generation of engines suggests the small-block V8 has a long future ahead of it.
Why This Matters for the Future of the V8
In an era when automakers have been under enormous pressure to electrify their lineups, GM's investment in a brand-new V8 family sends a clear message. The internal combustion engine—and the V8 in particular—still has a central role to play in the company's product strategy. Whether you're looking at a high-performance sports car like the Corvette or a hardworking full-size pickup like the Silverado, GM is committed to offering customers a powerful, modern V8 option.
- The new 6.7-liter LS6 (409 ci) produces 535 horsepower and debuts in the 2027 Chevrolet Corvette Grand Sport.
- The new 5.7-liter V8 (350 ci) replaces the 5.3-liter L83 in the 2027 Chevrolet Silverado half-ton.
- The new 6.6-liter V8 (400 ci) replaces the 6.2-liter L87 and is expected to be the most powerful naturally aspirated V8 in a production pickup truck.
- All three engines belong to the same next-generation small-block family and share a common architectural foundation.
A Nod to History, a Look Toward the Future
There's something genuinely moving about the fact that the numbers 350, 400, and 409 are reappearing on Chevrolet spec sheets in 2027. These aren't just displacement figures—they're cultural touchstones, shorthand for decades of American performance heritage. For longtime enthusiasts, seeing those numbers on a brand-new engine is a validation that the traditions they care about still matter to the people building these vehicles.
For younger buyers discovering the V8 for the first time through a 2027 Silverado or Corvette, these numbers will become part of their own story. That's how automotive legacies are built and sustained—one generation passing the torch to the next, with a thundering V8 soundtrack in the background.
Whether you're drawn to the Corvette Grand Sport's 409-cubic-inch scream or the Silverado's return of the legendary 350, one thing is clear: the small-block Chevy V8 isn't going anywhere. And that's worth celebrating.