Corvette Grand Sport tipped for 6.7L LS6 V8 revival
GM's 6.7-liter LS6 V8 rumored for the Corvette Grand Sport
Corvette Grand Sport tipped for 6.7L LS6 V8 revival
GM is developing a 6.7-liter LS6 V8 for the Corvette Grand Sport, balancing the turbocharged LT7 ZR1 with a purer, track-focused setup. Leaks hint at 2026–2027.
2025-12-28T22:53:38+03:00
2025-12-28T22:53:38+03:00
2025-12-28T22:53:38+03:00
After the twin‑turbo 5.5‑liter LT7 V8 debuted for the Corvette ZR1 and ZR1X, it became clear General Motors wasn’t stopping at a single flagship powerplant. Internal GM documentation and enthusiast circles point to a parallel program developing a new family of naturally aspirated and forced‑induction V8s, with one of those engines earmarked for a future Chevrolet Corvette Grand Sport.The LT7 is a milestone: 1,064 hp, a flat‑plane crank, and the first production Corvette to embrace turbocharging. The Grand Sport, however, plays a different role—more track‑savvy yet focused on a cleaner, driver‑centric feel. That’s why insiders increasingly reference a new 6.7‑liter unit, listed in GM’s parts catalog as a sixth‑generation aluminum V8 with combined fuel injection.What really stirs interest is the possible return of the LS6 name—one of the most storied badges in Corvette history. Earlier talk centered on 5.7‑ and 6.6‑liter engines for sports cars and pickups, but recent leaks point specifically to a 6.7‑liter variant aimed at the Corvette. There are also indirect nods in production option codes tied to 2027‑model vehicles.If this holds true, the Corvette Grand Sport would again become a pivotal model, offering a compelling counterpoint to the turbocharged entries. For the market, that preserves a valuable balance between bleeding‑edge tech and the traditional American V8 character at a time when such engines are increasingly rare. A Grand Sport with a naturally aspirated or lightly boosted 6.7‑liter V8 would read as a logical, almost inevitable response to the turbocharged ZR1.GM clearly recognizes how much the emotional soundtrack and linear pull matter to Corvette loyalists. If the LS6 name does return, it would rank among 2026’s standout automotive storylines.
Corvette Grand Sport, GM, General Motors, 6.7-liter LS6 V8, LT7, ZR1, ZR1X, naturally aspirated V8, turbocharged Corvette, flat-plane crank, 2026, 2027, leaks, parts catalog
2025
Michael Powers
news
GM's 6.7-liter LS6 V8 rumored for the Corvette Grand Sport
GM is developing a 6.7-liter LS6 V8 for the Corvette Grand Sport, balancing the turbocharged LT7 ZR1 with a purer, track-focused setup. Leaks hint at 2026–2027.
Michael Powers, Editor
After the twin‑turbo 5.5‑liter LT7 V8 debuted for the Corvette ZR1 and ZR1X, it became clear General Motors wasn’t stopping at a single flagship powerplant. Internal GM documentation and enthusiast circles point to a parallel program developing a new family of naturally aspirated and forced‑induction V8s, with one of those engines earmarked for a future Chevrolet Corvette Grand Sport.
The LT7 is a milestone: 1,064 hp, a flat‑plane crank, and the first production Corvette to embrace turbocharging. The Grand Sport, however, plays a different role—more track‑savvy yet focused on a cleaner, driver‑centric feel. That’s why insiders increasingly reference a new 6.7‑liter unit, listed in GM’s parts catalog as a sixth‑generation aluminum V8 with combined fuel injection.
What really stirs interest is the possible return of the LS6 name—one of the most storied badges in Corvette history. Earlier talk centered on 5.7‑ and 6.6‑liter engines for sports cars and pickups, but recent leaks point specifically to a 6.7‑liter variant aimed at the Corvette. There are also indirect nods in production option codes tied to 2027‑model vehicles.
If this holds true, the Corvette Grand Sport would again become a pivotal model, offering a compelling counterpoint to the turbocharged entries. For the market, that preserves a valuable balance between bleeding‑edge tech and the traditional American V8 character at a time when such engines are increasingly rare. A Grand Sport with a naturally aspirated or lightly boosted 6.7‑liter V8 would read as a logical, almost inevitable response to the turbocharged ZR1.
GM clearly recognizes how much the emotional soundtrack and linear pull matter to Corvette loyalists. If the LS6 name does return, it would rank among 2026’s standout automotive storylines.
