The next chapter in the mid-engine Corvette journey has began with the introduction of the 2023 Chevrolet Corvette Z06, a new American supercar that puts the world on notice. Arriving two years after the first production mid-engine Corvette Stingray debuted and captivated a worldwide audience, the Z06 is designed and engineered to act as a precision tool for the track.
The Z06’s striking appearance, sound and tactile feel are the result of intense focus. With new, wider sculpted front and rear fascia designs that define a confident stance and exotic proportions and a luxuriously-appointed interior, the Z06 is the ultimate supercar experience.
“Corvette has always brought a discerning customer to the Chevy family,” said Steve Hill, vice president of Chevrolet. “This new Z06 was designed and engineered to set a higher bar with increased levels of craftsmanship, personalization and performance so customers can truly have their own bespoke performance car.”
While the Z06 was created to dominate on the track when it debuted in 1963, the Z06 nameplate has also come to symbolize the perfect combination of track beast and supercar.
“The new Corvette Z06 defines the American supercar,” said General Motors President Mark Reuss. “It builds on the distinctive design and groundbreaking dynamics introduced with the mid-engine Corvette and elevates them to deliver refined but uncompromising track capability with world-class performance.”
The Z06 is set apart by its beating heart – the all-new 5.5L LT6, the highest horsepower, naturally-aspirated V-8 to hit the market in any production car, ever.
An all-new flat-plane crankshaft design entices drivers to push the tachometer to a lofty 8,600 rpm, creating 670 hp. Engineers spent two years crafting a distinctive, rich exhaust tone unlike anything ever heard from a Corvette.
The 2023 Corvette Z06 debuts an all-new 5.5L DOHC V-8 engine that marks a return to natural aspiration for the track-capable performance model.
Engine responsiveness and trackability, two characteristics of naturally aspirated motors, were the top priorities for providing an engaging driving experience for purists. As a result, it was determined that a clean sheet naturally aspirated powerplant was needed, with the goal of exceeding the power of any naturally aspirated production V-8 engine ever made. A lightweight, flat-plane crank design enables the engine to rev to the high rpms needed to create significant power.
More than horsepower, the new LT6 is designed to complement all aspects of the Z06’s track-focused performance experience. From its 8,600-rpm redline and full racing-style dry-sump oiling system to meticulously tuned induction and exhaust systems, this engine exudes an entirely new and emotional character.
The key to the LT6’s performance capability is a lightweight, low-inertia rotating assembly rooted in an all-new flat-plane crankshaft that, along with a comparatively short stroke (the distance each piston/connecting rod assembly travels with each rotation of the crankshaft), allows the engine to rev to its maximum range.
A version of the LT6 has powered the C8.R race cars since 2019, and the rigors of endurance road racing helped engineers refine the engine’s performance and durability.