Set of 4 high performance intake valves (27,5 mm stock diameter) for the Kawasaki Ninja 400.
 
Perfect replacement for your worn out stock valves - ready to install.
 
Made of the best grade stainless steel (EV8 / 21-4N) commonly found in high performance valves used for racing or modified engines (N/A, turbo or nitrous), these are a great improvement over the standard valves in strength and heat resistance.
 
These valves are finished with a durable black nitride coating to avoid stem wear and increase durability. These valves also have hardened valve tips.
 
Race Series is our new design with a 30º Back Cut to improve airflow and smooth the transition to the seat area as well as other improvements aimed at saving weight by optimizing valve dimensions.
 
These valves are 27,5 mm (stock OEM size).
 
We have stock and oversize intake valves (+1mm), stock exhaust valves, as well as upgraded valve springs, titanium retainers and bronze guides for the Ninja 400.
See our other listings.