Sidewinder .650" Valve Spring Kits for Big Twins with stock heads that use both 7mm and 5/16” valve stems as well as all S&S Super Stock heads that use 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 degree locks. High performance conical single wire spring. Chromoly forged retainers.
Disc Glide FXRDG 1984
Dyna Glide Daytona FXDB-D 1992
Dyna Glide Sturgis FXDB-S 1991
Electra Glide Special FLHX 1984
Fat Bob FXEF 1985
Sport Glide Grand Touring FXRD 1986
|Product Style||RevZilla Item #||Manufacturer Product #||Availability|
|S&S Sidewinder Valve Spring Kits For Harley Big Twin 1984-2004||1181990||900-0050||Available: Requires 1-3 business days lead time prior to shipment|
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