Ferrea Honda B17A1/B18C1/C3 33.5mm 5.47mm 25 Deg S-Flo +.5mm Comp Plus Intake Valve - Set of 8

These Ferrea Comp Plus intake valves feature a 33.5mm head diameter and a 5.47mm stem, designed for specific Honda B-series engines like the B17A1, B18C1, and B18C3. The S-Flo design with a 25-degree seat angle helps improve airflow into the combustion chamber, which can make a notable difference in engine performance, especially when you're rebuilding or modifying the top end. They are also +.5mm oversized, meaning they are intended for engines that have been bored out to match this larger diameter, ensuring a proper seal and maximizing efficiency.

Ferrea is known for making well-built engine components, and these valves are no exception. They are constructed from strong materials to withstand the heat and stress inside the engine. The Comp Plus series is a popular choice for tuners and builders looking for improved performance over stock components. Installing these valves is part of a larger engine build, so ensure you have the correct tools and procedures for a successful installation, typically involving cylinder head removal and valve seat machining.