- 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
Kit Includes:
- 2x Intake Valves
- 2x Exhaust Valves
- 4x Intake and Exhaust Retainers
- 4x Pairs of Intake and Exhaust Keepers
- 4x Intake and Exhaust Valve Springs
- 4x Intake and Exhaust Base Washers
| Compatible Vehicles | |||
| Years | Make | Make | Notes |
| 1957-1959 | Harley-Davidson | Sportster XL | |
| 1958-1959 | Harley-Davidson | Sportster XLCH | |
| 1960-1969 | Harley-Davidson | Sportster XLCH55 | |
| 1958-1969 | Harley-Davidson | Sportster XLH | |