689 With the exception of the bolt-in 510V camshafts, S&S cams are high lift and designed to take advantage of the extra flow of ported stock heads or S&S Super Stock® heads. Due to the high lift of these cams, S&S adjustable pushrods and high performance valve springs are recommended. Fitment • 84–99 big twins 546 Cam: Intended as a replacement part for S&S emissions certified engines, this is a short duration emissions cam with very little overlap to reduce emissions of unburned hydrocarbons. Requires high lift springs and normal clearance checks. 1000-4000 rpm (111”-124”). S&S® Cams for 91-Up Sportster® and 94-02 Buell® CAM Name Application 50-335082 S&S 500 91-Up CRUSHER TC-24D BOLT-IN CAMS FOR TWIN CAM • The ultimate bolt-in cams for '07-'17 Harley-Davidson Twin Cams • Really makes the 103's and 110's come to life, works great in 96", too • Strong bottom end & mid range with good top-end gains • Responds well to head work & higher compression (up to 10:1) Fits: '06 Dyna Models & All '07-'17 Twin Cams (adjustable push rods required) 250-579 Crusher TC-24D Bolt-In Cams (set) LIFT LIFT @ TDC OPENING CLOSING DURATION LOBE CENTER (INCHES) (INCHES) (DEGREES) (DEGREES) (DEGREES) (DEGREES) Intake .575 .190 20 42 242 101 Exhaust .547 .150 46 14 240 106 250-579 S&S® Camshafts for evolution engines CAM Name Valve Timming (open/close) Intake Valve Timming (open/close) Exhaust Valve Duration Intake Valve Duration Exhaust Valve Lift TDC lift Int. TDC lift Exh Spring Spacing Required Tappet Type Required 546 5°/55° 52°/5° 240° 237° .546" .126" .106" Yes Hydraulic 50-5072 Timing designation is function of zero lash @ .053” off base circle. Lifts @ TDC are measured at the valve and are for reference only. Overlap valve lifts must be checked on assembled motors. S&S® chain drive cam kits Features and benefits • Great way to increase performance at an affordable price • Quick installation – reuse many stock components • Easy Start Cams allow stock starter to start any engine • Kit contents: • Cams • Gearcover gasket • Cam bearings • Instructions CAM Name Easy Start Cam Kit Standard Cam Kit S&S Chain Drive Cam Kits For 99-06 Models 570 50-1065296 583 50-1065289 S&S Chain Drive Cam Kits For 2007-up Models 625 50-1065239 50-1064383 Note: 2006 Dyna® uses 2007-up style cams. Gear Drive Easy Start Cams for early models S&S® gear drive cam kits Features and benefits • Improves valve timing accuracy by eliminating timing chain lash • Easy Start Cams allow stock starter to start any engine • No tensioner shoes to wear out or fail Easy Start Complete Kit S&S Gear Drive Cams for 99-06 Models 640 50-1064840 FITMENT • 91-Up Harley-Davidson® Sportster® • 94-02 Buell® APPLICATIONS S&S 500: Bolt-in that cam that provides excellent torque with stock or ported heads. Great for modified engines up to 89" displacement and 9.0:1 to 10.5:1 compression ratio. Will work in 89" to 100" engines with less than 9.0:1 compression. Normal clearancing checks recommended. 2000- 6000 rpm. Requires adjustable pushrods. Note: 91-99 style pinion gear must be used with S&S® cams in 00-Up Sportster® models and 00-02 Buell® models with stock flywheels. 00-03 Sportster models and 00-02 Buell models using S&S flywheels or pinion shafts require the use of 91-99 style cams and S&S 86-87 pinion gear and oil pump drive gear.
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