HKS 1.6mm Metal Head Gasket | Mitsubishi Lancer EVO (23001-AM005)Evo V HKS Metal Head Gaskets HKS metal head gaskets are constructed from multiple layers of steel to ensure proper head to block sealing under the most demanding high performance conditions. In the construction of each HKS head gasket, a special metal which is extremely resistant to the severe levels of both heat and corrosion, that is attributed with high horsepower and high boost conditions, is used to ensure gasket integrity. Aside from the durable