well just by looking at that link I would say they have no clue what they are talking about because they don’t even clarify which head is pictured. They are some pretty big differences between it being a b17 head, b18a/b head or b18c head. It might be important to know which one that is. Just me and my first impression of the site. Maybe I’m wrong. Maybe they do the best head work on the planet.
They do specify this on the page.
Your Integra head has an identifying casting number that will be needed in order to ensure that you get the correct cylinder head. This number is cast into the head in the form of raised numbers.