Highest flowing sbm heads?

Mean416 said

Exactly illustrates my points. I was thinking about trying to find a modern build as a reference point. 700 from a small displacement engine, even in a highly tuned modern engine, is a lofty goal.

Click to expand...

I'm sure there's other ways to skin the cat, and these guys were working in the confines of nhra rules.

The consistent elements for similar builds seem to be low friction coatings, low friction rings, 8k+ rpm, and very good windage control.

There are practical approaches to all that, but sciencing it out is no easy feat.

Our engines have challenging pushrod angles, and constrained port geometry which limits (quality) flow to some extent.