Ferrea Honda D16Z6/Y5/Y7/Y8 31mm 5.48mm 118.6mm 20 Deg S-Flo +1mm Comp Plus Intake Valve - Set of 8

This set includes eight Ferrea Comp Plus intake valves, each measuring 31mm in head diameter and designed for Honda D16Z6, Y5, Y7, and Y8 engines. These valves are built to handle the demands of performance builds, offering an improved flow path with their S-Flo design and a +1mm oversized head for increased airflow. The 20-degree seat angle is a common specification for optimal sealing and performance in these engine types.

Ferrea is known for well-built engine components, and these valves are no exception. They feature a robust construction with a specific material composition that allows them to withstand higher temperatures and pressures often found in modified engines. The +1mm oversizing means they are slightly larger than stock, which can contribute to better cylinder filling and overall engine efficiency when properly installed and tuned. The 5.48mm stem diameter and 118.6mm overall length are designed to be compatible with stock or performance valve guides and retainers for these Honda engines.