Cadillac twin-turbo V8

The Cadillac twin-turbo V8, branded Blackwing V8 and carrying the General Motors code LTA, was a dual overhead cam twin-turbocharged V8 that Cadillac built only for the CT6-V and CT6-Platinum in the 2019 and 2020 model years. It was a clean sheet design and the division's first twin-turbo V8, with an aluminium block, forged steel crankshaft and rods, sodium-filled valves, hot-V turbochargers producing up to 20 psi, direct injection and cylinder deactivation. Each engine was hand-built by one technician at the Performance Build Center in Bowling Green, Kentucky, and carried that technician's signature plaque. Production of the CT6-V was limited to 275 cars for the United States in its first year, and the engine ended when the CT6 was cancelled in 2020, before an Escalade version could follow.