This is our new V2 billet girdled head kit for Kawasaki SXR 800 & 750 engines. This girdled head uses offset base nuts and requires grinding on the outside of the cylinder to make clearance for the girdle studs. We also changed to larger diameter domes, so going from a standard bore to a big bore just requires new domes and not a new head. The head is completely sealed by orings and no head gasket is required. All heads are anodized and made in-house in the USA!