Seller notes

These are NEW Kitaco west spiral valve set (made in JAPAN). These valves have a thinner stem (see pic #3) at the port area to increase flow. Message any ?s.From Kitaco:West spiral polished valve neck (stem diameter Φ5.5, valve neck diameter intake side Φ4.0, exhaust side Φ4.5) to reduce intake and exhaust resistance. The diameter of the face is enlarged to 24 on the intake side and 20.5 on the exhaust side, which improves the volumetric efficiency of the combustion chamber and realizes higher...

Contact Us regarding this vehicle

Contact Seller on eBay

You will be redirected to eBay

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission.