Precision Machined for Performance Builds

Manley Valve Blanks deliver the foundation for custom valvetrain solutions that serious engine builders demand. From championship drag cars to high-revving race mills, these blanks are manufactured from industry-leading materials and engineered to support extreme combustion pressures, heat, and RPM. With stems prepared for precision cutting and grooves, Manley blanks offer unmatched material quality and consistency, allowing builders to finish valves to exact specifications for any application. Backed by Manley’s decades of innovation in stainless and specialty alloys, these valve blanks provide the strength and reliability needed for high-performance, competition, and custom head work.