Re: In search of a BB question
If the ports are wider than they are tall, they are peanut port heads!
And they are usually around 200 cc's or so.. Open chambers, I think?
The Vortec, L29 head that replaced them comes in as a true, although small large oval port head but generally they are around 230 cc's or so! It' s good small head b/c it has a very good modern 100 cc, heart-shaped, open chamder design!
And there are true large ovals run from 235 up above 260 cc's!! Open, semi-closed AND closed chambers....
Plus smog, or open-chambered large oval heads that you tell b/c the quench by the exhaust valve is almost totally gone and the chamber is squared up with the intake valve lines..