These are high performance 3 groove 31mm exhaust Valves for Sea-Doo (set of six).
They are made of one piece forged chromoly steel, fully CNC machined, have a hard chrome treatment, and hard tips. The CNC process eliminates any imperfections from the forging. They then undergo a heat-treatment to ensure proper molecular integrity and uniform grain structure throughout the valve. The hard chrome plating reduces wear and provide optimum anti-friction performance. Excellent for hi-performance or racing applications, and for those looking to rebuild the cylinder head, or replacing bent valves. Made in the USA.
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