Every published specification for the 2027 Chevrolet Corvette Grand Sport, grouped for buyers who want the numbers rather than the adjectives. Where Chevrolet has not published a figure, no figure appears here. For the trim ladder and what each step costs, see the Grand Sport trims page; for the car in context, the Grand Sport overview.

Engine Specifications

One engine across all three equipment levels. The LS6 is a new-generation small-block, naturally aspirated, and it is the most powerful standard engine Chevrolet has fitted to a Corvette.

Specification	Figure
Engine	6.7L LS6 V8, naturally aspirated
Displacement	409 cubic inches
Horsepower	535 hp
Torque	520 lb-ft
Compression ratio	13.0:1
Stroke	100 mm
Fuel delivery	Direct and port injection with Active Fuel Management
Transmission	Eight-speed dual-clutch, rear transaxle
Drivetrain	Rear-wheel drive with electronic limited-slip differential

Chevrolet quotes 2.75 seconds to 60 mph and a 10.95-second quarter mile at 124 mph, both with available equipment. The 13.0:1 compression ratio is the highest Chevrolet has run in a Corvette V8, and a new continuously variable oil pump maintains pressure across the rev range.

Exterior Dimensions

The Grand Sport uses the wide body previously reserved for the Z06, which is the single dimension that most changes how the car behaves and how it parks.

Dimension	Figure
Width, excluding mirrors	79.7 inches
Wheelbase	107.0 inches
Height	48.6 inches
Body styles	Coupe with removable roof panel, or convertible
Aerodynamics	Wide-body chassis, integrated rear spoiler, wide side air inlets

Interior Dimensions and Capacity

Two seats, and luggage room split across two compartments rather than one.

Measure	Figure
Seating capacity	2
Luggage volume, both compartments	9.1 cubic feet
Fuel tank	18.5 gallons

The coupe's removable roof panel stows in the rear compartment, so the roof and a full load of luggage compete for the same space. The convertible's power hardtop folds without taking the front compartment, which is the practical argument for it on a longer trip.

Wheels, Tires, and Brakes

Staggered forged aluminium wheels as standard, with the brake and tyre specification changing by performance package rather than by equipment level.

Item	Specification
Wheels	20-inch front, 21-inch rear, 10-spoke forged aluminium
Wheel finishes	Pearl Nickel standard; Gloss Black, Bright Polished and Carbon Flash available
Brakes, standard	eBoost-assisted Brembo discs, six-piston front and four-piston rear monobloc calipers
Brakes, Z52 Track Performance Package	Carbon-ceramic
Tyres, Z52 Sport Performance Package	High-performance
Tyres, Z52 Track Performance Package	Michelin Pilot Sport Cup 2 R
Suspension	Magnetic Selective Ride Control 4.0

Fuel Economy and Fuel System

The 2027 Corvette has not yet been rated. Ratings are published by the EPA at fueleconomy.gov and will appear there once testing completes; that is the figure to use, and it is the only one worth quoting.

What is known: the tank holds 18.5 gallons, and the LS6 runs Active Fuel Management, which shuts down cylinders under light load. On a steady run down US-75 toward Okmulgee that is the system doing the work; it does nothing for you at the top of the rev range, which is where this engine wants to live.

Key Features by Trim

The decision grid. "Not std" means the feature is not standard equipment at that level, not that it cannot be ordered.

Feature	1LT	2LT	3LT
Engine and output	6.7L LS6 V8, 535 hp, 520 lb-ft, all three levels
Bose audio	10-speaker	14-speaker	14-speaker
Standard seat	GT1 Mulan	GT1 Mulan	GT2 Napa
Heated and ventilated seats	not std	standard	standard
Head-up display	not std	standard	standard
Wireless phone projection	standard	standard	standard
Wireless charging pad	standard	standard	standard
Performance Data Recorder	not std	standard	standard
Blind zone and cross traffic alerts	not std	standard	standard

Safety and Compliance

An HD rear vision camera and a rear camera mirror are standard on every Grand Sport. Rear cross traffic alert and side blind zone alert are standard from 2LT. Automatic emergency braking and forward collision alert are standard across the Chevrolet range.

Hands-free driving is not part of the Corvette package: the range offers neither Super Cruise nor adaptive cruise control. Crash-test results are published by NHTSA and the IIHS; neither has rated this car, and both sites carry the current position.

Warranty Coverage

Coverage	Term
Bumper-to-bumper	3 years or 36,000 miles, whichever comes first
Powertrain	5 years or 60,000 miles, whichever comes first
Rust-through	6 years or 100,000 miles
Roadside assistance	Check the terms of your own Roadside Assistance plan

Service intervals and running costs are covered on the Grand Sport service page.

What These 2027 Corvette Grand Sport Numbers Mean in Practice

The number	What it means when you own one
79.7 inches wide	Wider than most full-size pickups across the body. A standard nine-foot garage bay works, but mirrors-out clearance in a downtown Tulsa parking structure is the real constraint, and the toll plazas on the Creek Turnpike are tighter than they look. That is why the 2LT blind zone alerts earn their money
48.6 inches tall	Low enough that kerbs, steep driveway aprons and speed humps need approaching at an angle. Front-axle lift is the option worth having if your driveway is steep
9.1 cubic feet of luggage	Two soft weekend bags, comfortably. Two hard suitcases, no. And not alongside the coupe's roof panel, which lives in the same rear compartment
18.5-gallon tank	Enough for a full day of back roads, and worth topping up before a run south on US-75 where stations thin out past Glenpool. Owners coming from Broken Arrow tend to fill up before they cross town
535 hp, rear-wheel drive	All of it goes to the rear axle. On a cold, damp Oklahoma morning that is a car to warm up gently. The all-wheel-drive alternative is the Grand Sport X

Browse the Grand Sports on our lot, or check Grand Sport X availability.

Specifications FAQs

How big is the 2027 Corvette Grand Sport engine?

6.7 litres, or 409 cubic inches. It is the naturally aspirated LS6 V8, making 535 horsepower and 520 lb-ft of torque.

How wide is the Corvette Grand Sport?

79.7 inches excluding mirrors. That is the Z06-derived wide body, and it applies to every Grand Sport and Grand Sport X.

How much luggage space does it have?

9.1 cubic feet across the front and rear compartments combined. On the coupe, the removable roof panel stows in the rear compartment and shares that space.

What is the Grand Sport quarter-mile time?

Chevrolet quotes 10.95 seconds at 124 mph with available equipment, and 2.75 seconds to 60 mph.

Does the Grand Sport come with a manual transmission?

No. Every Grand Sport uses an eight-speed dual-clutch transaxle. No manual gearbox is offered anywhere in the current Corvette generation.

Explore the Corvette Grand Sport