KIBBLEWHITE Black Diamond™ Engine Valve Kit — Head dia. I 1.950"/E 1.750", Len. I 3.885"/E 3.810", Stem dia. I 0.3765"/E 0.3760", Tulip I 23 – 66-77 Big Twin
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Fortified engine valves offering improved wear resistance, reduced friction, and compatibility with leaded and unleaded fuels. Made in the USA.