Angle Milling

RustyRatRod said

And the mystery head Doug's holdin up might be painted up cardboard fakery. It may as well be. We'll never know.

Click to expand...

Not so. It is real. That head was seen by several slant six racers, in person.

PS: I'm not sure why the people did it (I think just for compression), but some slant six heads have been angle milled approx .100 on one side and approx .200 on the other side.