Take a look here at the Earl's Pressure Master gaskets:

http://store.summitracing.com/partde...5&autoview=sku

"High-performance engine sealing from Earls.

Earl's Pressure Master long-term header seals combine graphite foil sealing inserts, aluminum retainers, and a temperature-resistant silicone elastomer to make ordinary gaskets, seals, and adhesives obsolete. Each seal is framed by the aluminum retainer, and can be preloaded for guaranteed positive closure and optimum bolt preload. There is no need for adhesive during installation or reassembly, and no need to retorque after assembly. The aluminum retainer gives a metal-to-metal seal on headers and allows the seal inserts to be replaced easily if needed. Also available with uncut inserts."