FUJI Racing Stainless Steel Intake Valves – Subaru




FUJI Racing Stainless Steel Intake Valves – Subaru


Swirl polished heads for smoother air flow over the valve.
Back cut to reduce valve weight for higher RPM, higher boost pressure. Also allows for more aggressive cam profiles without increasing valve spring seat pressures.
Valve stems are micro-polished to allow for less oil retention on the stem, which creates less drag on the stem to guide for a smoother motion.
Intake valves are a modified 21-4n stainless and exhausts are a modified 23-8n stainless material for high heat capacity while maintaining longevity.
Valve tips are either hardened or have a stelite wafer tip fused so that the tip is within 5 Rockwell C of the rocker or valve tappet for extended life and less wear.
Valve tip lengths – Fuji have taken extra time to adjust tip heights on the applications to require less tipping of the valve to maintain proper tip height for proper valve train geometry and cut down on install times when setting valve lash.
They have also adjusted the keeper groove to properly balance intake and exhaust spring pressures. This reduces the use of valve spring shims and maximizes performance from the spring and retainer kits.
Valves will work with an OEM Collets.


Suitable for the following models:

  • Subaru EJ20/EJ22/EJ25 Engines From 1998 Onwards


  • 8x Stainless Steel Intake Valves



View all FUJI Racing products

Additional information

Valve Option

+1mm Oversize, Standard Size