Need help with valve covers leaking

Are these a black rubber type gasket? Back around 86/87 I bought a set of MP, might have still been Direct Connection , cant remember, gaskets for a 440, they were that type, reusable and never so much as weeped. Best valve cover gaskets I ever bought. I just scored me some unused Moroso gold anodized aluminum covers and those would be my choice, or the Moroso gaskets?
they are greyish colour, steel with silicone rubber ribbed, they seal! also you cant over crush them with the steel in there. If the cover is flat your good to go.