That is interesting. I did not know that. So all small block open chambered heads are swirl ports???
What about closed chambers heads are they swirl ports also??
I don't think they did testing on closed chamber stuff. They had no need for 273 stuff. All of the testing I am aware of was done on the 318/340 and 360 open chamber heads. It wouldn't surprise me if the closed chambers were too, because Chrysler was ahead of the times like that.
