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Hottest Cadillac CT5-V To Have 6.2-Liter Supercharged V8 Because Blackwing Doesn't Fit: Report

Cadillac offers a sneak peek at the future of Cadillac’s V-Series as two prototypes take a lap around the Chevrolet Detroit Grand Prix presented by Lear track Saturday, June 1, 2019 on Belle Isle in Detroit, Michigan.
Cadillac offers a sneak peek at the future of Cadillac’s V-Series as two prototypes take a lap around the Chevrolet Detroit Grand Prix presented by Lear track Saturday, June 1, 2019 on Belle Isle in Detroit, Michigan.
Photo: Cadillac

The mighty Cadillac CTS-V is no more and in its place is currently... nothing. The 2020 Cadillac CT5-V, with its disappointing 355 horsepower, convinced no one it was a true CTS-V successor. Cadillac realized this, which is why more track-capable V-Series models are coming—and perhaps loaded with the dearly departed CTS-V’s batshit engine.

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The top-tier CT5-V model (which we’re unclear will get a special, new name or just be a trim of the CT5-V) will get a V8, but it apparently won’t be the Blackwing V8 we first saw in the Cadillac CT6-V. Instead, Car and Driver has learned from an unnamed source familiar with the project that the car will use the 6.2-liter, supercharged V8 from its predecessor.

The Blackwing V8 is a twin-turbocharged thing that, in the CT6-V’s tune, makes 550 HP. The 6.2-liter LT4 engine, if you’ll kindly remember, made 640 HP. It is this engine, hopefully, that will find its way into the hottest CT5-V.

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The reasoning, Car and Driver suspects, is packaging. See, the LT4 is a pushrod engine, which means it’s shorter, narrower and much more compact than the Blackwing’s double-overhead-cam design. Fitting it between the strut towers of the CT5 might be a problem.

So far, the Blackwing has only been found in the CT6-V, which is dead. When asked for comment, a Cadillac spokesperson noted, “The Blackwing is only available in the Cadillac CT6 Platinum and CT6-V. We have no additional plans regarding this engine to announce at this time.”

They added, “At this point, we are not sharing the name or engine for the future, high-performance V-Series vehicles, but we will do so in the upcoming months.”

So we don’t know what engine the top-tier CT5-V will get, or if it will maintain the CTS-V’s power figures. Regarding the LT4 engine, however, I’ve got some insight for the General Motors engineers: if it fits, it sits.

Writer at Jalopnik and consumer of many noodles.

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DISCUSSION

kristenlee
Kristen Lee

Some musings:

This makes me wonder if GM was planning more powerful CT5-V/CT4-V versions to begin with. It announced it was bringing more powerful versions after we all gave them shit for it. And now the big, fancy V8—that only went into one (1) car—might not even fit? Feels like someone’s scrambling.

But who knows what actually goes on over there.