Ferrea Subaru FA20 35mm 5.46mm 105mm 10 Deg S-Flo Flat Head Stock Comp Plus Intake Valve - Set of 8

If you're rebuilding the top end of your Subaru FA20 engine, especially if you're looking for improved airflow without going to a full race setup, these Ferrea Stock Comp Plus intake valves are a solid option. They're designed to be a direct replacement for your factory valves, making the installation process straightforward when you're already inside the engine.

These valves feature a 35mm head diameter and a 5.46mm stem, with an overall length of 105mm. The S-Flo design helps improve airflow into the combustion chamber, which can lead to better throttle response and a bit more power. The flat head design is intended to work well with stock-style combustion chambers and piston valve reliefs. Ferrea is known for making well-built valvetrain components, and these valves are made to handle the demands of a performance-oriented engine build.

When you're putting your engine back together, using quality valves like these ensures that your valvetrain will be reliable. Make sure to check the manufacturer's installation instructions for any specific details regarding valve seating and assembly.