Seller notes

Black Diamond Intake Valve One-piece stainless steel. Stellite tipped. Impregnated by a special German process 0.002 in. deep and 0.002 in. surface buildup to improve wear properties and reduce friction. This process provides resistance to corrosion and wear superior to that developed by hard chromium and electrolysis nickel plating. These valves are light and the profiles provide excellent flow characteristics. Set contains springs and titanium upper collars and lower collars as required Set co...

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