Cometic MLX head gasket for 2007–2013 GM LS‑series V8 5.3L engines, sized for a 3.940‑inch bore at .052 thickness. The MLX construction includes an integrated stopper layer for enhanced combustion chamber sealing, and the design improves clamp load around the cylinder without increasing bore distortion. It’s intended as a direct replacement gaskets option for the specified LS 5.3L applications.
Cometic 07-13 GM LS Series V8 5.3L 3.940in Bore .052 MLX