ENGINE KIT 1984-99 HD EVOLUTION

Kits include KPMI® or equivalent valve spring kit, a full set of Black Diamond™stainless steel standard size valves and are black nitride coated, H.T. (Heat Treated) steel valve keepers and valve stem seals (where applicable) for engine applications listed Compatible with leaded and unleaded fuels Made in the USA Sold as complete kit for one engine Black Diamond™ valves are one piece forged stainless steel that are fortified by a special German process to improve wear properties and reduce friction White Diamond® valves are CNC machined from one-piece forging of either EV8 stainless steel or Inconel-751 and are hard chromed with 360° anode to produce a hard chrome finish