Upgrade the cylinder head of a compatible Honda engine with the Kibblewhite Cylinder Head Kit, part number 30-33460. This comprehensive top-end service kit combines essential gasket components, KPMI standard valves, a high-performance titanium spring kit, C630 valve guides, and Viton valve stem seals for a complete valve train refresh. It is designed for rebuilding or servicing applications where dependable sealing, accurate valve control, and durable internal components are required. The included top-end gasket kit contains base gaskets, engine case gaskets, exhaust gaskets, head gaskets, and the necessary O-rings and washers. C630 valve guides use a copper, nickel, and aluminum blend to support reliable operation and serviceability. The kit also includes Kibblewhite Black Diamond valves, which are one-piece forged stainless steel components treated through a specialized German process to improve wear properties and reduce friction. Together, these components provide a practical solution for restoring cylinder head performance during an engine rebuild. The Black Diamond valves are paired with Kibblewhite high-performance titanium valve springs and Viton valve stem seals for a balanced top-end assembly. Confirmed kit contents may vary by application, so verify the part number, engine configuration, and required valve specifications before installation. Fitment is intended for select Honda applications using the 30-33460 configuration; confirm compatibility with the exact model, year, and engine before ordering. Professional installation and adherence to the engine manufacturer’s service procedures are recommended. Features: Complete top-end gasket kit with base, engine case, exhaust, and head gaskets Includes required O-rings and washers for the listed Honda application KPMI standard valves with high-performance titanium valve spring kit C630 valve guides made from a copper, nickel, and aluminum alloy blend Black Diamond one-piece forged stainless steel valves with wear-resistant treatment Viton valve stem seals designed for reliable oil control Fitment: Select Honda applications; verify model, year, engine, and part number before installation