Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0.036". World Products Man-o-War Block. Cometic MLS (Multi-Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two materials. MLS gaskets have increased strength because they are comprised of multiple layers of stainless steel; which also creates the ability to rebound and resist corrosion. The outer layers are embossed and coated on both sides with Viton (a flour elastomer rubber based material that is heat resistant to 250 C/ 482 F). Viton is designed to meet the demands of a variety of harsh sealing environments, load conditions, and surface finishes. The center or shim layer is uncoated stainless steel, which can be varied to accommodate multiple thickness requirements. Toyota B58/B58H .036; MLX Cylinder Head Gasket, 83mm Bore. Fitment: 1949 Jaguar XK120 Base 1950 Jaguar XK120 Base 1951 Jaguar XK120 Base 1952 Jaguar XK120 Base 1952 Jaguar XK120 M 1953 Jaguar XK120 Base 1953 Jaguar XK120 M 1954 Jaguar XK120 Base 1954 Jaguar XK120 M 1955 Jaguar XK140 Base 1955 Jaguar XK140 M 1955 Jaguar XK140 MC 1956 Jaguar XK140 Base 1956 Jaguar XK140 M 1956 Jaguar XK140 MC 1957 Jaguar XK140 Base 1957 Jaguar XK140 M 1957 Jaguar XK140 MC 1958 Jaguar XK150 Base 1958 Jaguar XK150 S 1959 Jaguar XK150 Base 1959 Jaguar XK150 S 1960 Jaguar XK150 Base 1960 Jaguar XK150 S 1961 Jaguar XK150 Base 1961 Jaguar XK150 S 2020 Toyota GR Supra Base 2020 Toyota GR Supra Launch Edition 2020 Toyota GR Supra Premium 2021 Toyota GR Supra Base 2021 Toyota GR Supra Premium