S&S Cycle - S&S Performance Parts 2025 L - Volume 67

1984-'99

Phone: 608-627-1497

1 -2017-UP 2 -2007-'17 3 -1999-'06 4 -1984-'99 5 -1936-'84 6 -XL-RA1250 7 -BELTS & GASKETS 8 -TOOLS 9 -WARRANTY 10 -APPENDIX

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

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 For 1984–’99 Evolution® Models Description

Part #

1984–’99 Evolution® with stock heads

900-0050

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 For 1984–’99 Evolution® Models Description

Part #

1984–’99 big twins with stock heads

900-0593 900-0595

All S&S Super Stock® heads

4-31