340 heat shield/gasket

j_anderson said
nice! are they stainless? If not, will you have them ceramic coated?

Here's a reply from him moments ago.

"This is the same material used on the modern hemi heat shields. It's a version of aluminized steel. This provides good ductility and has corrosion protection that meets modern OEM standards. Is there a concern on your part or just curious? "