S&S Cycle

SIDEWINDER ® .650" LIFT VALVE SPRINGS

FITMENT • 1986–'20 Harley-Davidson® Sportster® models with stock heads FEATURES AND BENEFITS • 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 CONTENTS • Valve keepers, top & bottom collars, springs, shims • Valve guide seals (not included in kit for 1999–'04 xl)

S&S® .650" LIFT SPRINGS SPECIFICATIONS Lift

Installed Height Seat Force Force @ Max Lift Max RPM

.650"

1.860"

178 lb.

376 lb.

6500

106-5909

.650" LIFT SPRING KIT Description 1986–2003 (5/16" valve stems) 2004–2020 (7mm stems)

Part #

900-0050 106-5909

S&S recommends roller rocker arms be used with lifts over .585"

NOTE

STREET PERFORMANCE .585" VALVE SPRINGS FITMENT • 1986–’20 Harley-Davidson® Sportster® models / 1995–’02 Buell models FEATURES AND BENEFITS S&S® .585" LIFT SPRINGS SPECIFICATIONS Lift Installed Height Seat Force .585" 1.850" 135 lb.

Force @ Max Lift

325 lb.

• Dual springs reduce the risk of valve float • Suitable for high performance applications • Accommodates camshaft lift to 0.585" KIT CONTENTS • Valve Guide Seals, Springs, Top & Bottom Collars, Keepers, Shims STREET PERFORMANCE .585" VALVE SPRING KIT Description Part # 1986–'03 Sportster® & 1995–'02 Buell® (5/16" valve stems) 900-0593 2004–'20 Sporsters® (7mm stems) 900-0594 S&S Super Stock Heads 900-0595

900-0593

VALVE SPRING REPLACEMENT PARTS: SEE PAGE 302

268 Order 608-627-1497 S&S Late Models 1999–up