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2027 Grand Sport and GS-X officially revealed (New 6.7L LS6!)

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2027 Grand Sport and GS-X officially revealed (New 6.7L LS6!)

Posted: 3/26/26 3:55pmMessage 1 of 2
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Eagleville, PA - USA
Joined: 11/1/2001
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Vette(s): Used to own a 1979 Corvette now owned by JB79


VIDEO AND MANY PICS AT THE BOTTOM OF THIS POST!

Some big news just dropped from Sebring, and it’s a massive shakeup for the C8 lineup. Chevy is officially bringing back the Grand Sport for 2027, but they aren't just giving us a wide-body Stingray this time. They are introducing a brand new engine and a high-tech AWD variant.
Here is the breakdown of what you need to know:

The Big News: The 6.7L LS6 V8
Forget the LT2. For 2027, the Stingray and Grand Sport are getting a massive 6.7L (409 cu in) naturally aspirated V8dubbed the LS6.
  • Output: 535 hp and 520lb-ft of torque.
  • The Vibe: Chevy is calling it "jackhammer fury." It’s got a 13.0:1 compression ratio and a 95-mm throttle body.
  • Bonus : For the first time on a C8 pushrod V8, we’re getting an available quad center-exit exhaust.
The Purist Pick: The Grand Sport This is the heritage play. It’s RWD, wide-body, and focused on being the "sweet spot" for daily driving and track days.
  • Standard Mag Ride and a new low-dust braking package.
  • If you want to go nuts, there’s a Z52 Track Package that adds the Z06’s iron brakes, or a higher tier with carbon ceramics and Pilot Sport Cup 2R rubber.
The Game Changer: The Grand Sport X (GS-X)
This is where it gets wild. Following the ZR1 naming convention, the "X" denotes eAWD.
  • It pairs that 6.7L V8 with a front-axle electric motor (borrowed from the ZR1X).
  • Total Output: A massive 721 hp.
  • It has "Stealth Mode" for quiet neighborhood exits and a "Push-to-Pass" button for max power on demand.
Availability & Heritage
They showed off a "Launch Edition" in Arctic White and a GS-X in "Pitch Gray Metallic." Production is moving back to Flint, Michigan, for the engines, which is a cool nod to the original 1955 V8s.

They’ve basically turned the Grand Sport into a "baby ZR1" with that AWD option. 721 hp in a GS is insane.


More pics:


|UPDATED|3/26/2026 3:55:45 PM (AZT)|/UPDATED|

-Adam Wartell
NCM Lifetime Member #1222
Founder: Vette Registry 

My first Vette, now owned by JB79:

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Re: 2027 Grand Sport and GS-X officially revealed (New 6.7L LS6!)

Posted: 3/26/26 4:59pmMessage 2 of 2
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Burke, VT - USA
Joined: 1/23/2002
Posts: 7767
Vette(s):
SOLD - "The Toy" - '70 Convertible
SOLD - "The Beast" - '90 ZR-1 (#682)
SOLD - "Betty" - '28 Ford Model A Tudor
SOLD - "BLKBRRD" - '78 Pontiac Trans Am
"BLUBYU" - '04 Coupe

Here's another (click to see). That's going to be a pretty SWEET ride...!!! Way, WAY outside my budget tho'.

Jim Olson 

"The Toys"...!!!  Save the Wave!

Where I've been in a Corvette...!!!

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