Ferrea Toyota 1GR-FE 30.5mm 5.46mm 25 Deg Taper Flo +1mm Sgl Grv Comp Plus Exh Valve - Set of 12

When you're rebuilding the top end of your Toyota 1GR-FE engine, you want components that can handle the demands of performance. This set includes twelve Ferrea Competition Plus exhaust valves, each measuring 30.5mm in diameter with a 5.46mm stem. These valves feature a 25-degree taper Flo +1mm design and a single groove, which are specific features aimed at improving airflow and sealing under high-stress conditions.

Ferrea uses high-grade materials for their Competition Plus line, ensuring these valves can withstand the heat and pressure generated in performance applications. The +1mm sizing means these valves are slightly larger than stock, which can help increase airflow into the combustion chamber when paired with appropriate cylinder head work. The single groove stem design is also a detail that contributes to their performance characteristics, often used in applications where valve control and stability are critical.

This set of twelve valves is intended for a complete engine build, ensuring you have all the necessary components for both banks of your 1GR-FE. Proper installation is key to realizing the full benefit of these performance valves, so be sure to consult your engine's service manual or a trusted mechanic for the correct procedures and any related components you might need, such as valve springs or retainers.