Ferrea Honda H22A1/A4 36mm 5.48mm 106.85mm 20 Deg S-Flo +1mm 6000 Series Intake Valve - Set of 8

If you're rebuilding the top end of your Honda H22A1 or H22A4 engine, these Ferrea 6000 Series intake valves are a solid option. This set includes eight valves, each measuring 36mm in diameter with a 5.48mm stem and a total length of 106.85mm. They are designed with a 20-degree S-Flo profile and are 1mm oversized compared to stock, which can help improve airflow into the combustion chamber.

Ferrea uses high-quality materials for their valves, and the 6000 Series is known for its strength and durability in performance applications. The S-Flo design is intended to help reduce valve shrouding and promote better gas flow. These valves are a direct replacement for stock, meaning they fit right into your existing valve guides and seats, though proper machining and installation are always recommended for optimal performance and longevity.