The rear-mid-engine Chevrolet C8 Corvette seems destined to receive a twin-turbocharged V8 with dual overhead camshafts, and a CAD drawing allegedly leaked from within General Motors is the latest bit of corroborating evidence. The engine most likely won’t serve as the base powerplant option, as some earlier leaked CAD drawings appeared to include GM’s familiar 6.2-liter LT1 pushrod V8.
It is rumored that the new motor will be dubbed LT7, and it could herald a new generation of GM V8s.
The CAD image originated at CorvetteForum.com, and it shows a longitudinally-mounted V8 with a pair of low-hanging snails, one on either side, positioned toward the front of the engine next to either cylinder bank. Perched atop the engine are what appear to be water-to-air intercoolers, and out behind the motor, four exhaust tips – although they’re grouped together in pairs, unlike on the C7 Corvette’s LT1, LT4, and LT5 engines.
There’s a lot to take in here, and still plenty of details that are shrouded in mystery. We don’t know the LT7’s displacement, for instance (although an IHS Markit report puts displacement at 4.2 liters), nor on what model(s) it will end up seeing deployment. (Our money is on a C8 Z06.) Worse still, we don’t know when or where the rear-mid-engine C8 Corvette will at long last be unveiled, although we can say that we rather doubt it will turn up at next month’s North American International Auto Show in Detroit.
The C8 Corvette is expected to launch sometime in 2019 as a 2020 model. For the leaked CAD drawing of the LT7, visit CorvetteForum.com.