Not yet, it is currently being sold as a crate engine. The Challenger may be the first car it is offered in.

 

I've owned 2 vettes in my life, a '65 coupe and a '68 coupe. The '68 was a big block. The '65 was stiff, too much oversteer and beat the bejeebies out of you on long cruises. The '68 was fun just from a pure seat of the pants acceleration standpoint, but I was not impressed with the overall performance as a road car. I have not had the pleasure of owning/driving anything newer, but the Z06 seems to have all the performance goodies built in....

 

I'll keep my fingers crossed for a 6.4. I think they could go even bigger, maybe a 7.0