Ferrea Ford DURATEC 23E 35.08mm 5.48mm 103.6mm 20 Deg S-Flo Stock Comp Plus Intake Valve - Set of 8

Starting with a 5.48mm stem diameter and a 35.08mm head size, these Ferrea Stock Comp Plus intake valves are built for Ford Duratec engines. The 20-degree seat angle and S-Flo design help improve airflow into the combustion chamber, which can make a notable difference in how your engine performs, especially if you're rebuilding the top end or looking for improved breathing. They measure 103.6mm in overall length, designed to work with stock valve guides and retainers.

Ferrea uses high-grade steel for these valves, ensuring they can handle the heat and stress inside your engine. The S-Flo design features a special undercut stem and a radiused face, which helps reduce turbulence and increase the volume of air entering the cylinder. This attention to detail in the design and material choice means you're getting a well-built part that's made to last and perform reliably under demanding conditions. This set includes eight intake valves, enough for a typical four-cylinder Duratec engine.