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C8 Chevy Corvette ZR1 to get Blackwing-derived V8 with 800 horsepower?

Sources disagree on whether the twin-turbo mill will appear in the Z06 or ZR1.

The C8 Chevrolet Corvette is reportedly getting a twin-turbo V8, powering either the Z06 or the ZR1.

Sources recently told Automobile that the Z06 will get a new engine based on the Cadillac 'Blackwing' V8 architecture. The changes are expected to be extensive enough to warrant a new label, perhaps LT7, and bump output to 800 horsepower and at least 700 pound-feet of torque.

Muscle Cars and Trucks talked to other sources who agree with the engine details, including the rumor of a flat-plane crank, however the particular variant that will get the 800-horsepower V8 is said to be the ZR1 rather than the Z06.

The latter report agrees with previous rumors claiming the C8 Z06 will get a naturally aspirated V8 benchmarked against the Ferrari 458 Speciale, which screams to 9,000 rpm and delivers an impressive 597 ponies without forced induction.

GM executives have been adamant that the Blackwing V8 will not be put in the Corvette despite sharing the same assembly plant in Kentucky. Dropping the turbochargers, increasing the displacement and switching to a flat-plane crank would presumably require much more extensive re-engineering than a true modular architecture, yet GM's LT engines demonstrate a willingness to pursue such projects.

The collective rumors suggest the first Blackwing-derived engine could be the naturally aspirated 5.5-liter unit debuting in the Z06, followed by the ZR1 that brings back turbocharging, and finally a hybrid 'Zora' flagship featuring a hybrid powertrain with 1,000 horsepower.

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