Engine Valve Kit - 0.415" Lift - Knucklehead '36-'47
- 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
- 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
- Compatible with leaded and unleaded fuels
- Sold as complete kit for one engine
- Made in the USA
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