Durable Cork Valve Cover Gaskets: Speedway offers reliable small block Compatible with Chevy cork valve cover gaskets that are built to last.,Versatile Application: These gaskets are suitable for use on any street or race engine, providing a dependable seal.,Extra Thick Construction: The gaskets feature a 5/16" thickness, made from a blend of cork and neoprene, ensuring enhanced durability and improved sealing performance.,Convenient Pair Set: Each purchase includes a pair of valve cover gaskets, providing everything you need for a complete installation.,Item Details: The gaskets have a 5/16" extra thick construction, utilizing a cork/neoprene blend for optimal sealing capabilities.