“Over my dead body,” is how Cadillac President Steve Carlisle answered the question on whether Cadillac would be sharing its 4.2-liter twin-turbo V8 with other GM brands.
We’ve heard this answer before as former president Johan de Nysschen also shot down any notion of the Cadillac Blackwing motor going into a Corvette. “Just quit the speculation it’s headed for Corvette. It’s not,” stated de Nysschen back in March 2018.
Cadillac’s Blackwing Motor will be assembled in Bowling Green’s Performance Build Center and is currently slated for the CT6-V and the CT6 Platinum models. The V “performance” version would generate 550 hp and 627 lb-ft of torque while the “lesser” CT6 model makes 500-hp and 553 lb-ft of torque. Both engines will be coupled to the 10-speed auto transmissions.
The Cadillac CT6-V sold out in two hours with 275 units sold. Another run is planned but the quantities are unknown at this time. Meanwhile, the CT6 has been targeted for discontinuation in 2020 as it’s built at GM’s Detroit-Hamtramck assembly plant, one of the plants targeted for closure in GM’s recent cost-cutting measures. Other Cadillac models that may see the Blackwing motor include the new Escalade coming in 2021, as well as the possibility of the XT5 and XT6 models.
That being said, Chevrolet wouldn’t put the Blackwing motor in a Corvette as is anyways. Although that IHS Market Study that came out a year go pointed to one of the C8 motors being a 4.2-liter 32-valve twin-turbo DOHC V8 which sounds very much like the Blackwing engine, the earlier leaked CAD images showed a twin-turbo V8 with the turbos mounted down low on the engine and not in the Hot-V configuration like the Blackwing.
So with a different turbo set up, some specific Corvette internals (heads/intake), as well as the required engine dressing specific to Corvette, and boom!, the LT6 is born! With the engine having a new GM part number vs the Blackwing, this would make Steve Carlise and former president Johan de Nysschen correct in saying that the Blackwing engine would never see the engine-bay of a Corvette.
So if you ask us, these recent comments coming from Cadillac’s chief are much ado about nothing…
Here’s an official Cadillac video on the Blackwing and its assembly at the Bowling Green Performance Build Center.
Cadillac Unveils New Turbocharged 4.2 Liter V8 to be Built in Bowling Green’s PBC
Cadillac’s Boss Shoots Down Rumors that the New 4.2 liter V8 Will Be Going in a Corvette
Cosworth Building New Cadillac Hot V Cylinder Heads, Hints at Future C8 Corvette Engine