What are the specs for the engine of the Corvette C6.R ?

[alex]

I'm interested in :
- displacement (bore ,stroke)
- hp @ x rpm
- torque @ y rpm
- block / head materials
- valvetrain
It looks like this :
http://www.zorly.com/images_corvette/2008/09/29/Technology%20Developed%20by%20GM%20Racing%20for%20the%20Corvette%20Race%20Car.jpg
Thankyou.

 

[LS1]

like miller said however it should be noted this year they have to drop to a 5.0l engine instead of the 6.0l they used last year and the 7.0l they used the year before