.585" Street Performance Valve Spring Kits / '88-'17 Models

Elevate the performance of your Harley with the cutting-edge S&S Cycles .585" Street Performance Valve Spring Kits. Tailored for Harley models from '88-'17, this kit is designed to unleash the true potential of your engine, enhancing power, efficiency, and reliability. Dive into the realm of advanced engineering and let your Harley deliver more than you ever imagined.

Kit Features:

• Advanced Dual-Spring Design

  : The unique S&S design minimizes the risk of valve float, ensuring your engine performs smoothly under any condition.

• Optimal Performance Specs

  : Suited for valve lifts up to .585 with a 1.800 / 130 lb. installed height and a formidable 325 lb. at maximum lift, pushing your engine's capabilities to new heights.

• Comprehensive Kit Contents

  : Includes everything needed for a seamless upgrade springs, top and bottom collars, keeper shims, and valve seals, ensuring a perfect fit and outstanding performance.

• Proudly Made in the U.S.A.

  : Crafted with precision and care, this valve spring kit epitomizes the excellence of American manufacturing, offering durability and quality that surpasses expectations.

Why Choose S&S Cycles? The S&S Cycles .585" Street Performance Valve Spring Kits not only boost your Harley's performance but also safeguard its engine against common issues like valve float. This means enhanced throttle response, improved horsepower, and a smoother ride, all while maintaining the integrity of your engine.