S&S Cycle

SIDEWINDER® .650" LIFT VALVE SPRINGS

FITMENT • 1984–’99 Evolution® 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

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

S&S® .650" LIFT VALVE SPRINGS SPECIFICATIONS Lift Installed Height Seat Force

Force @ Max Lift Max RPM

.650"

1.860"

178 lb.

376 lb.

6500

.650" LIFT VALVE SPRING KIT Description

Part #

900-0050

1984–’99 Evolution® with stock heads

STREET PERFORMANCE .585" VALVE SPRINGS

FITMENT • 1984–’99 Evolution® with stock heads • All S&S Super Stock® heads FEATURES AND BENEFITS • Single coil reduce the risk of valve float • Suitable for high performance applications • Accommodates camshaft lift to 0.585" KIT CONTENTS • Springs, Top & Bottom Collars, Keepers, Shims

S&S® STREET PERFORMANCE .585" VALVE SPRINGS SPECIFICATIONS Lift Installed Height Seat Force Force @ Max Lift .585" 1.850" 135 lb. 325 lb.

STREET PERFORMANCE .585" SPRING KIT Description

900-0593

Part #

900-0593 900-0595

1984–’99 big twins with stock heads

All S&S Super Stock® heads

VALVE SPRING REPLACEMENT PARTS STARTING ON PAGE 69

50 S&S Vintage 1926–1999 Order 608-627-1497