A premium valve cover gasket made with high temperature silicone. This gasket fits the stock stamped steel valve cover used on all the BMC "A" series engines (848cc, 998cc, 1098cc, 1275cc). This includes the MG Midget, AH Sprite, Mini and other cars fitted with the "A" engine. This gasket has been designed with a semi-circular cross section to better fit these valve covers. The flat side of the gasket mates to the cylinder head while the curved semi-circular side mates to the recess in the valve cover to eliminate leaks.