We’ve heard all about the twin-turbocharged 4.2-liter Blackwing V8 engine that powers the new Cadillac CT6-V sedan, but with deliveries of the vehicle being delayed due to emissions regulations, we have yet to see or hear very many clips of the engine note or exhaust note.
Luckily our sister site Cadillac Society has dug up a video on Instagram of the Blackwing V8 free-revving, allowing us to hear its deep, burbling exhaust note. The clip is unfortunately quite shot and could have better audio quality, but with only a handful of Cadillac CT6-Vs in existence currently, it will have to do for now.
The Blackwing V8 produces 550 horsepower and 640 pound-feet of torque in the Cadillac CT6-V (formerly the CT6 V-Sport), where it is mated to a ten-speed automatic transmission. The dual overhead camshaft V8 utilizes a “hot-V” configuration, which uses a different cylinder head and intake/exhaust layout to integrate the turbochargers at the top of the engine, within the “V.” The close proximity of the twin-scroll turbochargers to the combustion chamber helps to eliminate turbo lag and also gives the engine smaller packaging.
Additional highlights of the Blackwing V8 include:
- 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
The twin-turbo 4.2-liter V8 is also sold in a lesser LTA spec, which is offered in the Cadillac CT6 Platinum. This version of the engine is rated at 500 horsepower and 574 pound-feet and is also paired with a 10-speed automatic transmission in the full-size sedan.
Deliveries for the Cadillac CT6-V with the Blackwing V8 engine are expected to shortly following the emissions-related delays, although it’s still not exactly clear when the first customers will receive their vehicles.
Source: Cadillac Society