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S&S CYCLE .650" Lift Sidewinder® Valve Spring Kit for '84-'04 Big Twins and '86-'03 HD® Sportster® Models - .650" 900-0050

S&S CYCLE .650" Lift Sidewinder® Valve Spring Kit for '84-'04 Big Twins and '86-'03 HD® Sportster® Models - .650" 900-0050

by S&S CYCLE
SKU 900-0050
$459.95 - $459.95
$459.95
$459.95 - $459.95
$459.95

🚚 Estimated Delivery: 23 Oct - 30 Oct

CONFIRM FITMENT BEFORE ORDERING

Please confirm fitment for your bike below as we do not accept returns on parts ordered incorrectly.

Sidewinder® .650" Valve Spring Kits for Twin Cam 88® big twins w/ stock heads (both 7mm and 5/16” valve stems) and all S&S Super Stock® heads (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˚ locks. High performance conical single wire spring. Chromoly forged retainers. Kit contains: Valve keepers, Top & Bottom collars, Springs, Shims.

  • Include springs, upper and lower collars and keys
  • For valve lift to .650" (EU: 1,65 cm) with 1.860" (EU: 4.72 cm) /178 lbs. (EU: 80,74 kg) installed height, 376 lbs. (EU: 170,55 kg) at max lift
  • Max 6500 rpm
  • Made in the U.S.A.

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

 

Specs
PRODUCT NAME SPRING KIT
TYPE VALVE
APPLICATION EXHAUST / INTAKE
MODEL SIDEWINDER
SPRING SEAT PRESSURE 178 LB
SPRING OPEN PRESSURE 376 LB
SPRING LIFT 0,650" / 0.650"
UNITS KIT
RIDING STYLE STREET

Fitment Guide

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