749212 Valve Ex Blank 35 4MM X 5

AV&V blank stem oversized valves provide a versatile foundation for custom Harley-Davidson engine builds where standard specifications fall short. These high-flow components are designed for professional builders seeking to maximise horsepower and torque through precise customisation. The stems are centerless ground to a micro finish and treated with hard chrome to ensure longevity and reduced friction within the guides. Because the stems are supplied blank, key grooves require professional machining to suit specific requirements. Additionally, the unhardened tips necessitate the use of valve stem lash caps. AV&V is renowned for precision valvetrain components, making these valves a reliable choice for high-performance head work and bespoke motor configurations.