I don't know how old you are garett, but perhaps you are too young to know that the World championship Repco engine, in the Brabham Repco were using that block.

I had a very happy year driving around in front of one in a Brabham BT 23. Accidently pulled 11700 RPM in it when I tried going flat over the second hump, [before the chase was added] down Conrod, in practice. The thing took off & hit those revs. No rev limiter in those days. It didn't mind, & continued on much less perturbed than I was.

It was red lined at 9700, a bit like driving a Honda actually.

Of course the Honda sports car of the day was the S600, & they hit 11000 from memory