0.585" Street Performance Valve Spring Kit

Valve Spring Kit - 0.585" - Twin Cam '99-'04

• Unique S&S design dual-spring kit reduces the risk of valve float
• Engineered specifically for high-performance Harley-Davidson valvetrains
• Supports aftermarket high-performance camshaft upgrades with up to a 0.585" valve lift
• Delivers a robust 325 lb of open pressure at maximum valve lift
• Kit includes high-tensile springs, top and bottom collars, keepers, and shims
• Made in the USA
• Requires a 1.800" installed height delivering 130 lb of seat pressure.
• Fits standard factory production cylinder heads only; does not fit CVO or Screamin' Eagle configurations.