In the case of the Escalade, the source told the publication that the SUV’s new independent rear suspension has sucked up a lot of the development funds allocated to the program, so GM has decided to settle for one of its pushrod V8s instead of the DOHC V8. GM may use its 6.2-liter L87 V8 in the SUV, which produces 420 horsepower and 460 pound-feet of torque. We also know a high-performance Escalade variant is under development, but if this new report is accurate, that variant will likely use the supercharged 6.2-liter LT4 V8 from the C7 Corvette Z06 and Camaro ZL1 rather than the Blackwing V8.
As for the Cadillac CT5, both the sedan and the Cadillac XT6 crossover were originally going to us the Omega platform that serves in the Cadillac CT6, the MT report says. Instead, GM opted to use less-expensive platforms, putting the CT5 on an evolved version of the GM Alpha platform called Alpha 2 and utilizing the front-wheel-drive C1XX platform for the XT6. Neither of these platforms was designed with the Blackwing in mind, so they won’t be tapping the twin-turbo DOHC V8 either. MT also says the XT6 has no room in its front-end for anything bigger than the current 3.6-liter LGX V6 engine – so don’t hold your breath for a twin-turbo V6 performance model.
It’s hard to confirm this report’s validity. Its claims are not outside of the realm of possibility, but we’d still take it with a small grain of salt. Lending some validity to the matter is the fact that this isn’t the first time we’ve heard the Cadillac CT5-V Blackwing won’t be getting the actual Blackwing V8 engine. Earlier this year, rumors surfaced that indicated both the CT5-V Blackwing and CT4-V Blackwing would use familiar GM engines – with the CT5 performance variant getting a supercharged LT4 V8 and the CT4 receiving twin-turbocharged 3.6-liter LF4 V6.
Currently, the only Cadillac product available with the twin-turbocharged DOHC V8 Blackwing engine is the CT6 and the high-performance CT6-V, the latter of which was built in very limited numbers. It’s not clear what other plans GM could have for the engine – if any.
Source: Motor Trend
This report was written in collaboration with our sister publication, Cadillac Society.