The Cadillac Blackwing engine was an internal combustion engine developed by General Motors for Cadillac luxury automobiles.
Engine
The Blackwing engine was the twin-turbo 4.2 liter V8. Assigned GMÂ RPO code LTA, the eight-cylinder, Dual-Overhead Cam (DOHC) gasoline engine is the result of a new clean-sheet design. It was Cadillac’s first-ever twin-turbo V-8 engine, and the luxury marque’s first DOHC V8 since the Northstar engine.
The Cadillac Blackwing engine (LTA) was a clean-sheet design that was developed with the goal of delivering exceptional power density. It also introduces various unique design elements developed to balance performance and efficiency with compact, mass-efficient packaging. The Blackwing launched on the 2019 Cadillac CT6 and was used on the 2020 Cadillac CT6 before being discontinued.
Highlights include the following:
- Twin-scroll turbochargers
- Electronic wastegate control
- Twin water-to-air charge coolers
- Twin throttle bodies
- Direct injection
- Dual-independent camshaft phasing
- Active Fuel Management / Cylinder Deactivation
- Variable-pressure oiling system
- Stop/start technology
The Cadillac Blackwing engine was available in two versions:
- A regular-output version making 500 horsepower and 574 pound-feet of torque, used in the CT6 4.2L Platinum
- A high-output variant making 550 horsepower and 640 pound-feet of torque, used in the CT6-V
Applications
The Cadillac Blackwing engine was used in the following vehicles.
Model Year | Brand | Model | Engine | Transmission | Power hp / kW @ RPM | Torque lb-ft / Nm @ RPM |
---|---|---|---|---|---|---|
2019 – 2020 | Cadillac | CT6 Platinum | LTA | 10L90 | 500 / 372 @ 5000 | 574 / 778 @ 3400 |
2019 – 2020 | Cadillac | CT6-V | LTA | 10L90 | 550 / 410 @ 5000 | 640 / 867 @ 3400 |
Production
As exclusively reported by GM Authority, a grand total of 1,200 units of the Cadillac CT6 with the Blackwing engine were produced for the 2019 and 2020 model years.
Discontinuation
After a very short lifespan, the Cadillac Blackwing engine was discontinued due to the discontinuation of the first-generation Cadillac CT6 and the cancellation of other vehicles that would ride on this . About 1,200 units of the engine were produced.