Valve Spring Kit 0.415 Lift - For 80-83 Harley Touring Dyna

For 80-83 Harley Touring Dyna

• Type: Valve Spring

• Part numbers ending with S use steel retainers
• Part numbers ending with T use titanium retainers

KPMI valve springs are wound from Premium Kobe Super-Clean Chrome Silicon Wire. KPMI valve springs are heat-treated, stress relieved, and shot peened to insure maximum performance and life. Springs are engineered for each specific application using proprietary advanced spring design simulation, and analysis software. Engineers pay special attention to cam and spring harmonics,stress, mass, and operating rpm.