Chevrolet Offers Two Grand Sport Paths With 6.7L LS6 V8 And 721hp Hybrid AWD

Chevrolet makes the single most consequential move for the Corvette by offering two Grand Sport paths: a rear-drive Grand Sport powered by a new 6.7 liter LS6 V8 and a Grand Sport X hybrid that adds an all-wheel-drive front axle to push total output toward 721 horsepower.

“Chevrolet has developed something of a modern tradition with recent generations of the Corvette: As a new generation approaches, the company rolls out the Grand Sport”

Ars Technica

The LS6 replaces the LT2 with a larger displacement, delivering 535 hp and 520 lb-ft of torque in the base configuration, a leap Chevrolet positions as a major step beyond the prior engine.

Ars Technica

This is framed as a counter to the turbocharged downsizing trend, reemphasizing displacement and natural aspiration in a modern Corvette.

The Grand Sport X uses the same LS6 backbone but adds a front mounted 186-hp electric motor to enable AWD, for a combined 721 hp.

Under the hood, the LS6 represents a genuine upgrade: a 6.7-liter V8 nicknamed LS6 that Chevrolet positions as a massed-up improvement over the LT2, delivering 535 hp and 520 lb-ft of torque in base form.

Official figures show 535 hp and 520 lb-ft of torque in base form.

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This is presented as a major step beyond the LT2 and GM suggests the LS6 is the most torquey naturally aspirated Corvette V8 in recent memory.

The 6.7L uses a high compression design and related breathing enhancements, including a 13.0:1 compression ratio noted in coverage.

The Grand Sport X pairs the LS6 with a front axle electric motor of 186 hp to deliver AWD.

“If you are a purist who loves the visceral roar of a naturally aspirated engine, current dealership forecourts will be looking a little dull”

MotorBiscuit

Power is transmitted through an eight-speed dual-clutch transmission in the base setup.

Chevy also offers four central-exit exhausts instead of the standard corner-exit, marking a first for a pushrod V8 powered C8.

Industry observers frame this as a deliberate push against turbocharging, underscoring a continued appetite for high-displacement V8 performance.