KB and Indy still have aluminum Hemi blocks so all is not lost...just a little harder to acquire.





So your options are

1- Wait 10 months to get a block from KB
2- Get a block made from 1980's recycled lawn chairs from Indy .



6.50 @ 226 MPH 4.25 @ 186 MPH
https://www.youtube.com/watch?v=YX86DHGKBo0