S&S Sidewinder Valve Spring Kit. .650" Lift for Harley-Davidson
326.87 €
Sale price
326.87 €
Regular price
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Kit includes beehive springs, forged chromoly upper collars, steel lower collars, valve stem seals, and shims.
Works with 7mm, 5/16” valve stems and all S&S SuperStock® (5/16”) head valve stems.
The springs are single wire conical (honeycomb) style springs, manufactured from clean high silicon Kobe alloy wire and then micro shot peened and nitrided.
650" valve lift.
Installed height of 1.860", valve seat spring pressure of 178 lb and lift of 376 lb at 0.650".
Maximum 6500 RPM.
Compatible with: > 84-99 Evo BT; 99-04 Twin Cam; 86-03 XL (NU)
S&S Sidewinder Valve Spring Kit. .650" Lift for Harley-Davidson
326.87 €
Sale price
326.87 €
Regular price
Works with 7mm, 5/16” valve stems and all S&S SuperStock® (5/16”) head valve stems.
The springs are single wire conical (honeycomb) style springs, manufactured from clean high silicon Kobe alloy wire and then micro shot peened and nitrided.
650" valve lift.
Installed height of 1.860", valve seat spring pressure of 178 lb and lift of 376 lb at 0.650".
Maximum 6500 RPM.
Compatible with: > 84-99 Evo BT; 99-04 Twin Cam; 86-03 XL (NU)