Your Opinion On Head Gaskets

No eBay APP ID and/or Cert ID defined in Kunena configurationI have seen steel, Copper and now these Brass with copper coolant passage reinforcements. I removed copper with a composition core from my 812 engine. I do not know where they came from because I was 10 years old when Dad and his business partner assembled the partially rebuilt engine. They had ALL the money in the world so it was not a lack of funds making them replace some but not all internal engine parts. They did not have gaskets so they used what most will recall as the Yellow Pages phone book. That huge one with the yellow front and back thin cardboard covers. In fact that was the timing chain cover gasket. I could read some phone numbers and adds. So anyway I saw these surfing the ebay Cord parts and wondered if anyone knew why they are brass and not steel or copper. Thanks for any information too. ... EBIDX%3AIT