Can someone please tell me the diameter of the stock exhaust ports on a 1976 2002 head? Are they round? Thank you.

Can someone please tell me the diameter of the stock exhaust ports on a 1976 2002 head? Are they round? Thank you.

without measuring they're approx 1, 1/4 x 1, 3/4 inches and not round but oblong at at angle

Here's a view of what Esty's talking about.

Exhaust Side of an E12 head *1973 and later model*
http://www.my2002tii.com/feb04/images/pic-%20012.jpg

In case you are curious, Intake side of the E12.
http://www.my2002tii.com/feb04/images/pic-%20014.jpg

Wow, those are some big valves.