GTR-STS - Silicone Valve Cover Gasket. This gasket fits the OEM stamped steel valve cover used on all the Triumph "Small" 4 cylinder engines (1147cc, 1296cc, 1493cc, 1500cc). This includes the Spitfire, Herald, MG Midget 1500, and other models.
Accessories: Permatex High-Temp Silicone Gasket Maker. (ARE-RTV)
GTR-STS - Gasket, Valve Cover. Spitfire-Herald -MG Midget
$18.00Price
http://res195.servconfig.com/~gasket/wp-content/uploads/2018/10/GTR-STS-Spitfire-MG-OEM-Stock-1500.pdf
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.