Vertex Stainless Steel one-piece valves - the better choice for engine-builders seeking ultimate performance and longevity for their modern 4 stroke engine. Replace the genuine factory two-piece valves that make your engine a "Ticking Time Bomb" with high performance steel one-piece valves. Precision machined with chromium-nitride coating providing ultimate protection from tip erosion and stem/seat wear
MEETS OR EXCEEDS O.E.M