Ported 516’s with OVERsized intake valves

Actually, it does.

The pics are very dark, but it appears to me as though someone took that edge where the chamber ends, and blended/feathered it to get rid of the step/edge.

I’d defer to the casting number though, instead of a few dark pics.
They are what they are.

View attachment 1715738993

View attachment 1715738995

View attachment 1715738997

20210518_082210.jpg