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.

Includes:

• Valve Guide Seals
• Billet Steel Triple Groove Locks (compatible with stock H-D and H-D SE valves)
• PSI Springs
• Star Racing Titanium Retainers

Spring Info:

• Max lift 0.640"  
• 80lbs seat pressure at 1.585" installed height
• Force at max lift 272lbs ±2lbs