S&S Cycle 900-0050 .650" Lift Sidewinder® Valve Spring Kit for 1984-2004 Big Twins and 1986-2003 HD® Sportster® Models V-Neck Perfect for those who appreciate

Perfect for those who appreciate both form and function

our boots and shoes provide unmatched comfort and protection whether you're on the road

Enhance the braking performance of your 14-up  Harley-Davidson™ FLT touring/bagger models

Separate scavenge sections for flywheel cavity and cam chest

S&S Cycle 900-0050 .650" Lift Sidewinder® Valve Spring Kit for 1984-2004 Big Twins and 1986-2003 HD® Sportster® Models V-Neck Perfect for those who appreciateS&S Cycle 900 0050 Sidewinder . 650" Valve Spring Kits for Twin Cam 88 big twins w stock heads (both 7mm and 5 16 valve stems) and all S&S Super Stock heads (5 16 valve stems). Works well with cams up to . 650" lift. Manufactured from ultra clean high silicon Kobe alloy wire then micro shot peened and nitrided. CNC machined 9 locks. High performance conical single wire spring. Chromoly forged retainers. Kit contains: Valve keepers, Top & Bottom