Chevy brought a handful of 2023 Corvette Z06 models to this year’s SEMA Show in Las Vegas, and GM Authority was lucky enough to capture a video of the vehicles performing a cold start and revving their naturally aspirated V8 engines.
As we already know, the 2023 Corvette Z06 is powered by the newly developed 5.5L V8 LT6 gasoline engine, which features dual overhead camshafts and a flat-plane crankshaft. This engine puts out an impressive 670 horsepower and 460 pound-feet of torque, making it the most potent naturally aspirated V8 engine ever installed in a production vehicle.
This high-revving V8 sounds like it’s pulled from an exotic supercar like a Ferrari or McLaren – making it a major departure from the Small Block V8 engines that powered previous Corvette Z06 models.
Our video shows an Artic White 2023 Corvette Z06 Coupe starting up before the driver gives the vehicle a few quick blips of the throttle to let onlookers hear the LT6 V8’s unique exhaust note. As the white example pulls onto a nearby stage, an Amplify Orange 2023 Corvette Z06 Convertible that was parked behind it then starts up and pulls onto the stage. The orange model is also equipped with the optional Z07 Performance Package, as indicated by the large rear wing and other aerodynamic components.
To our ears, the 5.5L LT6 V8 sounds very similar to a Small Block V8 at idle, but begins to sound more high-pitched and exotic as the revs build. The 2023 Corvette Z06 makes peak power at 8,400 rpm and has a sky-high redline of 8,600 rpm, so drivers will have plenty of incentive to get into the gas and let the LT6 V8 breathe a bit.
Want to hear the 5.5L LT6 V8 for yourself? Check out the video embedded below.