DOKURO use high quality materials and manufacture all engine valves in Japan. Then, as proof of high quality, DOKURO forge Made in Japan is on all valves. The materials available for DOKURO valve applications include carbon steel alloys, stainless steels, inconel, and titanium. Steel alloys such as SUH 3 or SUH 11 are used in most intake valves due to their strength, operating temperatures, relatively low cost, and the fact that they can be hardened at the valve tip for durability. Exhaust valves are made of SUH 35 stainless steel which offers greater high temperature strength and corrosion resistance.

Product Features:

• OE Quality - Made in Japan
• High quality carbon and stainless steel alloys
• High temperature strength
• Corrosion resistance