Chevrolet made an update to its 2027 Corvette Order Guide this week but instead of updating a certain option or mechanical entry, we got an update on the dry weight of the 2027 models that are now featuring the new LS6 V8 engine.
Surprisingly, the 2027 Corvette Stingray Coupe is just 26 pounds heavier (3,392 lbs) than the outgoing 2026 Corvette Stingray Coupe (3,366 lbs) while the Convertible model weighs in at 24 pounds heavier (3,491 vs 3,467).
The new 409ci LS6 V8 with 535-hp and 520 lb-ft of torque provides a remarkable upgrade over the outgoing LT2 with an increase of 45 horsepower and 55 lb-ft of torque when compared to the base Stingray model. When compared to the 2026 Stingray Z51, the increases are 40-hp and 50 lb-ft of torque. GM hasn’t published the weight of the LS6 that we can find, but these new specifications do provide us with an apples-to-apples comparison for the same model.
Both engines feature aluminum blocks with aluminum heads and a similar OHV valvetrain, so the additional weight is probably due to a number of factors including the dual-injection hardware, a larger intake/throttle body, and the new cooling and oiling hardware. But without knowing the full standalone weight of the engines, we can’t just attribute the new LS6 V8 engine as being the only source of the 2027’s slight weight gain.
The Grand Sport model is new for 2027, and Chevrolet also provided the specifications for the car. The 2027 GS Coupe has a dry weight of 3,520 lbs while the Convertible model is 3,619 lbs.
For the Grand Sport X, those numbers are 3,800 lbs for the Coupe while the Convertible weighs in a 3,899 lbs. As this model is the successor to the outgoing E-Ray, we see that the GSX Coupe weight is just 26 lbs more than the E-Ray Coupe, while the GSX Convertible model comes in at 43 lbs heavier than the E-Ray Convertible.
The dry weights for the Z06, ZR1, and ZR1X remain unchanged from their previous specifications. Here are the dry weights for all 2027 C8 models:
Stingray
• Coupe: 3,392 lbs
• Convertible: 3,491 lbs
Grand Sport
• Coupe: 3,520 lbs
• Convertible: 3,619 lbs
Grand Sport X
• Coupe: 3,800 lbs
• Convertible: 3,899 lbs
Z06
• Coupe: 3,500 lbs
• Convertible: 3,599 lbs
ZR1
• Coupe: 3,670 lbs
• Convertible: 3,769 lbs
ZR1X
• Coupe: 3,914 lbs
• Convertible: 4,013 lbs
Chevrolet also loves to discuss the power-to-weight ratios because their V8 engines produce big power from the relatively light aluminum blocks, and it’s great way to compare the Corvette engine’s power to competitors with turbocharged or hybrid powerplants. The new LS6 also showed big improvements there as well as the base Stingray’s LS6 is 6.35 lbs/hp versus the 6.78 lbs/hp in the outgoing LT2.
Here are the power-to-weight ratios (lbs. / hp) for the 2027 Corvette Line Up:
Stingray
• Coupe: 6.34
• Convertible: 6.53
Grand Sport
• Coupe: 6.58
• Convertible: 6.76
Grand Sport X
• Coupe: 5.27
• Convertible: 5.41
Z06
• Coupe: 5.22
• Convertible: 5.37
ZR1
• Coupe: 3.45
• Convertible: 3.54
ZR1X
• Coupe: 3.13
• Convertible: 3.21
At the end of the day, the small bump in dry weight for the 2027 Corvettes will be inconsequential for 99.9% of all Corvette buyers. The real performance number to keep in mind are the power-to-weight ratios which shows that Chevy engineers now exactly how to make every pound work in the Corvette’s favor.
Source:
GM Fleet Order Guide
Related:
National Corvette Museum Opens New Grand Sport Exhibit
[VIDEO] How to Use the Burnout Assist Feature on a 2027 Corvette
[POLL] Which Corvette Has the Better Exhaust Note? Grand Sport LS6 versus E‑Ray LT2
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AMERICA VERSUS THE WORLD:
using internet searches for this comparison of
2027 CHEVROLET CORVETTE ZR1X
• Coupe: 3.13 lbs. / hp
• Convertible: 3.21 lbs. / hp
2027 PORSCHE 911 TURBO S
Coupe – 5.46 lbs. / hp
Convertible – 5.7 lbs. / hp
2027 PORSCHE 911 GT3 RS
Coupe Only – 6.31 lbs. / hp
2027 PORSCHE 911 GT3 S/C
Convertible Only – 6.62 lbs. / hp
2026 ASTON MARTIN VANQUISH V12 ENGINE
Coupe – 4.92 lbs. / hp
Volante (Convertible) – 5.0 lbs. / hp
2027 MERCEDES AMG GT (Electric Motors Only)
4-Door Coupe – 4.7 lbs. / hp
THE BEST POWER TO WEIGHT RATIO AND THE WINNER IS –
Both the Coupe and Convertible 2027 Corvette ZR1X from Bowling Green, Kentucky!
Congratulations to Josh and all of the Corvette Team, your prize is waiting inside the National Corvette Museum.
So you get a 128 lbs heavier car no matter whether you opt for coupe or HTC GS. I truly admire GM for having the foresight (though not necessarily morals) to profit massively off of people with more $$$ than brains, who wish to LARP with the poser-mobile.
I’d also like to know why the GSX coupe has the same weight gain over the ER as the LS6 SR has over the LT2 SR; but the HTC GSX is now 43 lbs heavier, vs the SR HTC at 24 lbs. From my napkin math, that would place the new v2.0 motor as the culprit for the new 19 lbs of additional weight.
I still am baffled as to why a C8 weights more than a C7.
No torque tube. No front to back exhaust. A 1 piece transaxle as opposed to a seperat transmission and differential.
All those actual component changes should contribute to a lower weight.
Just asking.
Some of the reasons a C8 weighs more…
It’s longer & wider than a C7.
The DCT is heavier than the C7 auto, twice the manual.
Coilovers weigh a lot more than the transverse leaf springs…
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