- 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
- S&S recommends that adjustable pushrod/cover kit PART #0928-0017 be used
- Cam bearings and gaskets must be replaced when installing new cams
- Cams are also available with inner gears only; intended for cam replacement for motors that have already been converted to an S&S gear-drive system
- Made in the U.S.A.
- Cams for 00-06 Twin Cam are for use with stock splined drive gears; for installation on 99 Twin Cam motors you must purchase splined outer drive sprocket; S&S recommends that Andrews 4340 steel drive sprocket PART #DS-199175 be used
- Cams for 06 Dyna and 07-17 Twin Cam are for use with models with hydraulic tensioner chain-drive system; cams 510C and 551C are bolt-in applications, all others require high-lift valve springs
- Made in the U.S.A.
551 SERIES GRIND CAMS
- More power across the rpm range, with improved low and midrange torque
- Can be used with stock pushrods, springs and lifters
- Strongest from 1000-4000 rpm
- 99-04 models require high lift springs
- Designed as bolt-in cam for touring bikes with compression ratio between 9:1 and 9:9
0925-0743 S&S 551C SERIES CAM KIT
$345.95Price
SPECIFICATIONS
Application: - Exhaust
- Intake
Exhaust Close: 17° Exhaust Duration: 238° Exhaust Lift: 0,550" Exhaust Lift at TDC: 0,170" Exhaust Lobe Centerline: 102° Exhaust Open: 41° Grind: 551 Series Intake Close: 19° Intake Duration: 216° Intake Lift: 0,550" Intake Lift at TDC: 0,178" Intake Lobe Centerline: 91° Intake Open: 17° Product Name: Cam Kit Riding Style: Street Type: Chain Units: Kit