Upgrade your engine's performance and reliability with the Kibblewhite Engine Valve Kit. This comprehensive kit provides everything you need to replace your worn or damaged valves, ensuring optimal combustion and power delivery. Built with high-quality materials and precision engineering, this kit is designed for enthusiasts and professionals seeking a durable and performance-enhancing solution. Description The Kibblewhite Engine Valve Kit includes a full set of Black Diamond™ stainless steel standard size valves, known for their exceptional strength and resistance to wear. These valves undergo a specialized German treatment to further enhance their durability and reduce friction, ensuring smooth and efficient operation. The kit also features a KPMI® or equivalent valve spring kit, H.T. (Heat Treated) steel valve keepers, and valve stem seals (where applicable). The Black Diamond™ valves are black nitride coated for improved wear resistance. Suitable for both leaded and unleaded fuels, this kit is a versatile upgrade for a variety of engine applications. Precision-engineered and proudly made in the USA, this kit delivers unparalleled quality and performance. Features & highlights Includes KPMI® or equivalent valve spring kit for optimized valve control. Features Black Diamond™ stainless steel valves for superior strength and wear resistance. Black nitride coating provides enhanced durability and reduced friction. H.T. (Heat Treated) steel valve keepers ensure secure valve retention. Compatible with both leaded and unleaded fuels for versatile use. Complete kit for one engine, simplifying the replacement process. Made in the USA, guaranteeing high-quality craftsmanship. Technical specifications Brand: KIBBLEWHITE Valve Material: Black Diamond™ Stainless Application: Intake, Exhaust Collar Material: H.T. Steel Head Diameter: Intake 46.74 mm, Exhaust 41.02 mm Length: Intake 4.445", Exhaust 4.525" Spring Lift: 0.600" Spring Open Pressure: 361 lb Spring Seat Pressure: 163 lb Stem Diameter: Intake 7.90 mm, Exhaust 7.90 mm Tulip Angle: Intake 23°, Exhaust 29° Valve Seat Height: 1.810" Important to know This kit is sold as a complete kit for one engine. Please verify your engine's specifications before ordering to ensure compatibility.