TLDR: LT6 5.5 liter (335 c.i.) naturally aspirated flat-plane V-8 producing 670 hp @ get this......8400 rpm. Forged titanium rods, forged aluminum pistons, forged aluminum block (I think I saw forged block
). Pretty much the entire car is new, doors and roof carried over from Stingray. Carbon fiber wheels, 20" fronts, 21" rears with rear wheels dressed in 345 width tires. Skip Emilia's commentary, I know I did. No mention of valve actuation. Based on vid, it could
be OHV, since the engineers did mention "small block" a couple of times, but they could've been just saying small block for the sake of it being a Chevy V8. Video of engine gave no visual clues to OHC, or OHV, but considering how smooth it runs at idle, and how high it revs, most likely OHC with vvt. Mid-2022 expected release. If it is OHC, it looks like the cams are in/under the valve covers, and it probably has a timing chain too. Z07 aero package will be available. 2.6 second 0-60.
Vid did confirm that the Z06 would be getting a flat-plane, as I was 100% confident that it would since the LeMans C8-Rs all sounded flat-plane, and IMSA rules say only a production based engine for its class.