Ferrea Honda B18A1/B1/B20A 28.5mm 6.54mm 106.02mm 30 Deg Flo Dish +.5mm Comp Plus Exh Valve-Set of 8

These Ferrea Comp Plus exhaust valves are built with a +.5mm oversized head diameter, measuring 28.5mm, which is a notable change from stock. This specific sizing, combined with a 30-degree face angle and a flo-dish design, helps improve airflow into the cylinder. The valves are constructed from high-quality steel, chosen for its ability to withstand the heat and stress found in performance engine applications. Each valve stem measures 6.54mm in diameter and has a length of 106.02mm, ensuring a proper fit within the valve guides.

Ferrea has a reputation for well-built engine components, and these valves are no exception. They are designed to be a direct replacement for your original exhaust valves in Honda B18A1, B1, and B20A engines, making installation straightforward for someone familiar with engine rebuilding. The +.5mm oversize is a common choice for those looking to get a bit more out of their engine without requiring extensive modifications to the cylinder head. This set includes eight valves, enough to replace all the exhaust valves in a typical B-series engine.