Ferrea Nissan TB48DE 40mm 6.96mm 100.02mm 12 Deg S-Flo +1.5mm Comp Plus Intake Valve - Set of 12

If you're rebuilding the top end of your Nissan TB48DE engine and looking for improved airflow, these Ferrea Comp Plus intake valves are a solid option. They're designed to handle the demands of a performance build, offering a noticeable upgrade over stock components. The +1.5mm oversizing helps increase the valve head diameter to 40mm, which can significantly boost airflow into the combustion chamber, especially when paired with porting work.

Ferrea is known for making well-built valvetrain components, and these valves are no exception. They feature a one-piece forged construction from high-grade stainless steel, making them strong and resistant to the high temperatures and pressures found in performance engines. The S-Flo design with a 12-degree seat angle is intended to improve flow characteristics, working to get more air into the cylinder more efficiently. This set includes 12 valves, covering all the intake ports for your TB48DE.