Need slant heads for OHC project

IMHO, if you are really serious about this, the best way will be to start with a big hunk of billet aluminum.

If I had unlimited resources, yes it would be. However, simply adding to the existing head is the cheapest way for me to go. I don't have access to the necessary tools to completely CNC a head from scratch, but I can fabricate framework for a SOHC setup