Best 318 headers

I used Hooker Competiton Series on a 67 318 Barracuda and the fit was perfect. They cleared the power steering box and I didn't have to ding a single tube. I bought them though Advanced Auto Parts with one of there 20 percent off deals and were like $185 shipped.

Great! Do you remember the OEM number of the headers? Were they 1 5/8? Thanks