You’re mixing rumors. It’s rumored to either be TT or a NA flat plane crank v8. Some people think it will be a track tool like the c6z lightweight with 550hp others think it will be more like the c7z high HP forced induction.
flat plane crank engines aren’t really reliable if it’s an FPC count me out. I don’t need another c6z with random motor failures because of bad design (valve guides wearing out due to head angle). I have a deposit down for one but I’m losing interest because I now doubt it even comes out until 2023 since GM barely launched the c8 in 2020 and the economy is soft.
The Z06 will bring 650 HP and 600 lb-ft to the party, with a 5.5-liter V8. It will be followed by the first Corvette hybrid ever, the Grand Sport, expected in 2023, pairing a 6.2-liter V8 engine with an electric motor for a total output of 600 HP and 500 lb-ft of torque. A year later, it will be the ZR1’s turn with a 5.5-liter V8 and no electrification, making 850 HP and 825 lb-ft of torque.