69 big block starter heat shield

[NCGuy68]

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Galvanized steel is magnetic, stainless is NOT. Use a simple magnet if in doubt.

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Some kinds of stainless steel are magnetic, others are not. My heat shield certainly seems to be stainless, it is nice and shiny and has no rust or pitting. But it attracts a magnet too.

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Very interesting to say the least. Sounds like you have a nice original carbon steel shield survivor. Over time, galvanized parts will lose their 'garbage can spangle luster', and look like stainless, silver cadmium, or zinc chromate.

What coating do you think is on your part? Or...what alloy do you think it is made of? I'am skeptical that it is stainless.

Lets help Belair get over the 'metallurgy hump'...