- Beehive™ Valve Spring Kits designed as drop-in performance valve train upgrades
- Beehive valve springs deliver a host of well-documented benefits over conventional cylindrical valve springs
- Increased rpm capability with no rocker box clearance problems
- Designed to work with the limited valve spring installed height of the Harley V-Twin engine, small spring pocket and high-lift cams
- Made in the U.S.A.
- .540" lift (tool steel retainers)