By now it seems all but certain a mid-engine Chevrolet Corvette is coming soon. Now, details of the cars alleged engine lineup have surfaced by way of an engine production forecast document. The engine lineup suggests at least one of the car’s new engines will offer up to 850 horsepower.
The document in question, found by a reader of Corvette Forum, is actually an analyst document from IHS Markit. This would not be the first time IHS public documents have cast a fair bit of light on future vehicles, so this information has a history of being reasonably accurate.
In this case, the document is an engine production forecast that includes three engines allegedly bound for the next-generation Corvette model. Those three engines are a 4.2-liter V-8, 5.5-liter V-8 and a 6.2-liter V-8. The former two engines are listed as brand new DOHC engines, while the 6.2-liter sounds like a carryover of today’s Gen V Small Block.
Details of the engines outputs are not contained within the document. All the document validates is plans to produce the new DOHC engines at GM’s Tonawanda, New York engine plant. It also lists the maximum output of the DOHC engines as being 850 horsepower. Max power is often used on engine specification sheets, but does not always indicate the actual power the automaker will leverage in production.
The document also suggests the current C7 Corvette will remain in production through 2021, much longer than originally expected. This sort of feeds a running rumor in the industry that GM will keep the front-engine Corvette around as a low-end offering while launching the higher-end mid-engine car.
So, making several assumptions the 4.2-liter V-8 sounds like a good base engine for the mid-engine car, while the 5.5-liter would likely be a higher-output offering. The 6.2-liter will obviously hang around in the C7 car if it is going to remain in production longer.
The IHS document also lists a “Cadillac Sports Car” as part of the engine program, but has even future details than the Corvette portion. In the past rumors have surfaced that Cadillac would utilize the mid-engine Corvette platform for its own high-performance offering. This nugget of information further perpetuates said rumor.
Production volumes for all of the engines are fairly low, with the 6.2-liter having the largest annual output at 14,000 units. The 4.2-liter and 5.5-liter are listed as 7,000 and 5,000 units annually starting in 2019.
This document is likely just the first of many to trickle out details of the upcoming mid-engine Corvette, which could be revealed as early as January at the Detroit Auto Show.