Does any know what the compression ratio would be on a stock LQ4 with 243 heads milled to 64cc?

I wanting to get as close to 11.1cr as I can... Just not sure on the cc..64 or 59

Thanks

 

i'm building a LQ4 and i believe that my compression ratio with LS6 heads is going to be 10.25:1... you lose a good bit of compression with the dished pistons.

btw, next time try posting a question like this in the internal engine forum.