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S&S CYCLE Cam - 551 Series - Gear Drive - Twin Cam 551 Cam Kit

: Camshafts & Install Kits

: S&S

: 0925-0959

Regular price $948.95 USD

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Drag part number: 0925-0959 Manufacturer Number: 106-4868 Camshaft gear drive kits increase valve timing accuracy by eliminating timing chain lash and loosely-fit...

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  • Drag part number: 0925-0959
  • Manufacturer Number: 106-4868
  • Camshaft gear drive kits increase valve timing accuracy by eliminating timing chain lash and loosely-fit stock chain drive
  • Reverses the rear cam's direction of rotation, providing additional operating clearance between cam lobes; as a result, higher cam lifts are possible with the gear drive kit
  • Kits include cams, inner gears, outer drive gears, inner and outer bearings, gasket and instructions
  • Material must be removed from the inner surface of the stock gear cover to install S&S gear drive cams
  • A hydraulic press and other professional-level tools are required to install these kits
  • Cam bearings and gaskets must be replaced when installing new cams
  • Installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance.
  • Due to the inherent characteristics of gear drives, you may experience more valve train noise.
  • Installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance.
  • Designed as bolt-in cam for touring bikes with compression ratio between 9:1 and 9:9
  • More power across the rpm range, with improved low and midrange torque
  • Can be used with stock pushrods, springs and lifters
  • Strongest from 1,000-4,000 rpm
  • Made in the U.S.A.
  • Product Name: Camshaft
  • Type: Gear
  • Application: Intake
  • Application: Exhaust
  • Grind: 551 Series
  • Intake Lift at TDC: 0.178"
  • Intake Open: 17°
  • Intake Lobe Centerline: 91°
  • Intake Close: 19°
  • Intake Lift: 0.550"
  • Intake Duration: 216°
  • Exhaust Lift: 0.550"
  • Exhaust Duration: 238°
  • Exhaust Lift at TDC: 0.170"
  • Exhaust Open: 41°
  • Exhaust Lobe Centerline: 102°
  • Exhaust Close: 17°
  • Units: Kit
  • Riding Style: Street
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S&S CYCLE Cam - 551 Series - Gear Drive - Twin Cam 551 Cam Kit

Regular price $948.95 USD