Moonshine Horsepower High Lift Valve Spring Kit for M8 Engines, MHP-S640
Moonshine Horsepower 0.640" Valve Spring Kit For Harley Milwaukee Eight Engines
This made in the USA valve spring kit works great with cams up to .640" lift.
- Valve Guide Seals
- Billet Steel Triple Groove Locks (compatible with stock H-D and H-D SE valves)
- PSI Springs
- Star Racing Titanium Retainers
- Max lift 0.640"
- 80lbs seat pressure at 1.585" installed height
- Force at max lift 272lbs ±2lbs