I understand that it is a wedge block, but for example I have a World Block that the customer is picking up today with 1.7 rockers that I had to grind the heck out of. Yes I know why I had to with that. The tooling on these blocks to my understanding came from the old Koleno blocks and we had to grind some on them to. NOT a critique, we grind on lots of blocks. Just depends on the heads used and the pushrod angle needed.
Todd