When CorvetteBlogger broke the news in late December that a new 6.7-liter V8 engine was headed for the Corvette in 2027, the main assumption was that it would be for the new Corvette Grand Sport, while also replacing the 495-hp LT2 engines in both the Stingray and E-Ray.
While that first leak was all about the LS6, we then had a specific Grand Sport leak a week later that the Grand Sport Heritage Package with the Z15 RPO code was also showing under the list of 2027 RPO codes. Both of these were made possible by JMB56 of the MidEngineCorvetteForum.com who reached out to us to share that fun news! He provided those previous screen shots from the GM Parts Book and that what was originally shared.
Today, we came across another example what I think has to be definitive proof – again straight from GM’s internal systems – that the new engine will indeed be used in the 2027 Corvette Stingrays.
The post comes from Reddit and it actually shows a printout from a GM screen showing their Vehicle Locator service. The original poster shared the following screen shot and then simply said, “Work at a GM dealer and found this today…” FYI, you can click the photo to enlarge it, and click again to close it:
When I first read this post over the weekend, I saw it to be another confirmation of the specs from the LS6 and the fact that it a GM screenshot again solidifies that the information is correct. Today while rolling through Reddit, I came across the same post again, but paused after taking a closer look at it based on some of the comments, as the screenshot confirms the LS6 engine is coming in 2027 for the Corvette Stingray.
On the very right of the screenshot, the drop down shows a “2027 model year Corvette Cpe 2 DR Convertible” and in the middle section with the blue highlighting, it reads “1YC67” which is the GM code for the C8 Stingray Convertible. Finally, in the poorly circled left side, we can see the same LS6 engine designation that we broke on December 23rd – “LS6 – Engine Gas, 8 CYL, 6.7L, DI, PFI, OHV, ALUM, GEN 6.”
We can assume that both the Stingray model codes (1YC07 and 1YC67) would be showing the LS6 as the engine, and now that it’s confirmed for the 2027 Stingray, we would most likely see it for the two E-Ray models (1YG07 and 1YG67) as well.
Since our original post about the LS6 designation, GM has reportedly scrubbed the Parts Book of any LS6 information for the 2027 Grand Sport. So either our Reddit poster was in there early enough to get his own screenshot, or Chevy missed the one listed under the 2027 Stingray Convertible.
Source:
Reddit
Related:
[VIDEO] Everything We Know about the 2027 Corvette Grand Sport
GM Scrubs their Parts Book for Any Reference to the 2027 Corvette Grand Sport’s LS6 Engine
Another GM Parts Book Leak Confirms Grand Sport Specific RPO Codes
Twice Confirmed: GM Parts Book Leak Shows 2027 Grand Sport LS6 V8 to be 6.7 Liters!
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Now the next big hurdle will be to find out how much horsepower and torque the new engine will have. I will be most interested in seeing the power curve.
550HP or so?
Why are they not calling it LT3?
Why not. Order it with the new Tremec M6 and you will have a complete car that C8 fence sitters will jump on.
LS6 is the performance engine code…
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