Ferrea Nissan KA24DE 37.6mm 7mm 101.32mm 25 Deg S-Flo +1mm Competition Plus Intake Valve - Set of 8

If you're rebuilding the top end of your Nissan KA24DE engine, especially for performance applications, these Ferrea Competition Plus intake valves are a solid choice. They are designed to handle the demands of a performance build, offering improved airflow over stock components. This set includes eight valves, each measuring 37.6mm in diameter with a 7mm stem and a total length of 101.32mm, featuring a 25-degree S-Flo design.

These valves are a +1mm oversized option, which means they are slightly larger than the factory valves. This increase in diameter helps to increase the overall airflow into the combustion chamber, which can lead to better performance. Ferrea is known for making well-built valvetrain components, and the Competition Plus line is designed for engines that see more aggressive use. The S-Flo design is a specific feature that Ferrea uses to help improve airflow characteristics.

When installing these, remember they are a performance part and may require matching components like upgraded valve springs and retainers to perform optimally. Always refer to your engine's service manual for proper installation procedures and specifications.