Speedo Seats & Luggage- racks Frame Chassis Suspension Forktubes Wheels Brake Fenders Gastanks Motorparts Gaskets Intake Transmission & Driveline Exhaust Electrical & Lights Handlebars, Cables & Mirrors Oil tanks Oil & Chemicals Fasteners Windshields Forward controls, Footpegs Miscellaneous MOTOR PARTS - LOWER END 10 606 NEW PRODUCTS ADDED WEEKLY AT / MOTORCYCLESTOREHOUSE.COM 99-06 Twin Cam (excl. 2006 Dyna) IG = Gear drive cams with Inner Gears only IOG = Gear drive cams complete kit with Inner & Outer drive gear. IG IOG -- 531687 475G cams, .475" lift (close to stock) -- 531852 509G cams, .509" lift (bolt-in) -- 531253 510G cams, .510" lift (bolt-in) -- 564019 551G cams, .550" lift (bolt-in) -- 531254 570G cams, .570" lift (bolt-in) -- 564021 583G cams , .583 lift (bolt-in) -- 531255 585G cams, .585" lift (bolt-in) -- 592014 MR103 cams, .585" lift 503581 531256 625G cams, .625" lift 503582 531257 640G cams, .640" lift 06-17 Dyna; 07-17 Softail; 07-16 Touring IG = Gear drive cams with Inner Gears only IOG = Gear drive cams with Inner & Outer drive Gear complete kit IG IOG -- 531259 510G cams, .510" lift (bolt-in) -- 531689 551G cams, .550" lift (bolt-in) 531676 531260 570G cams, .570" lift (bolt-in) -- 532608 HP103, .575" lift (bolt-in) 531677 531261 585G cams, .585" lift (bolt-in) -- 531262 625G cams, .625" lift -- 531263 640G cams, .640" lift 503577 GEAR-DRIVE CAMS Fits 99-17 Twin Cam models. The gear drive system is in fact a revolutionary different and much more reliable construction. Especially in high lift/performance applications, when compared with the OEM chain-drive design. A gear driven camshaft is stronger and will not give any of the mechanical problems connected with the OEM chain driven camshafts. The S&S gear drive kit will increase valve timing accuracy, and therefore horsepower, by eliminating the timing chain lash and loosely fit stock cam gears. The only downside of gear drive is that you may experience a slight increase in mechanical sound, this is why OEM is using a chain. It has no other mechanical advantages whatsoever. Since the chain guides and tensioner are eliminated there is no longer the possibility for these parts to fail and damage other engine parts. The S&S gear drive kit reverses the direction of rotation of the rear cam, providing additional operating clearance between cam lobes. As a result, higher cam lifts are possible with the S&S gear driven cams. Note: With the exception of the 475G and 510G cam, adjustable pushrods (MCS 503573) are required to compensate for the smaller camshaft base circle of these cams. Performance valve springs are also required. A hydraulic press and other professional tools (see our JIMS Twin Cam tools in our tool catalog) are necessary to install and remove Twin Cam camshafts. S&S recommends that installation of these and other related products are left to a professional mechanic. S&S CAMSHAFT SPECIFICATION CHART Intake° Exhaust° Duration° Valve Lift Valve Lift TDC Open/Close Open/Close In/Ex In/Ex In/Ex OES** -9/25 42/-3 196/219 .474"/.474" .087"/.110" 475G 2/34 36/4 216/220 .475" .060"/.060" 509G 18/18 46/11 216/237 .509" .060"/.060" 510G 20/38 52/20 238/252 .510" .187"/.178" 546G 5/55 52/5 240/237 .546" .126"/.106" 551G* 15/20 39/18 216/238 550" .178"/.170" 570G 20/40 55/20 240/255 .570" .187"/.179" 583G 5/18 58/24 262/583 .583" .113"/.206" 585G 20/45 60/20 245/260 .585" .186"/.179" MR103 13/33 50/22 226/252 .585" .172"/.177" 625G 20/55 60/20 255/260 .625" .189"/.184" 640G 25/60 60/25 265/265 .640" .228"/.214" Timing and duration measured at zero lash and .053" tappet lift of base circle. To avoid coil bind, allow min. .030" more free valve travel than the max. valve lift that is mentioned. To achieve adequate valve spring clearance, several higher lift top collars are available which require no machining. *551 cams are not recommended for 10:1 or higher compression ratio ** OES = Original Equipment Specification Outer drive gears Used in combination with S&S cams with gear drive. Note: Material must be removed from the inner surface of the OEM gear cover before installation of the drive gears. 503577 99-06 Twin Cam (excl. 2006 Dyna) 531265 06-17 Dyna; 07-17 Softail; 07-16 Touring 531259 TWIN CAM S&S 99-17 TWIN CAM CAMSHAFT SET, GEAR DRIVEN Camshafts come with installed inner drive gears only. Camshaft & gear kit includes camshafts with gears installed and completed with an outer drive gear set. Note: Other parts are required for installation. See our 'Checklist: Twin Cam S&S gear driven camshaft... What do I need?' for more information. Application recommendations: 475G: Bolt-in stock grind. Not more power, just for people that want to eliminate the stock chain drive 509G: Bolt-in, high torque from idle to 4000 RPM for 88" engines with stock compression 510G: B olt-in 88" to 95" with up to 9.7:1 CR (unported heads) 3000-5500 RPM 546G: Short duration, small overlap emissions cam. Replacement for S&S emission certified engines. 551G: Bolt-in torque for stock 96" Touring bikes. Strongest cam from idle to 4000 RPM for 96" to 106". Not recommended for 10:1 or higher CR 570G: Bolt-in 88" to 103" with 9:1 to 10:1 CR. 3200-5700 RPM overall power increase 583G: Bolt-in. 88 to 103" engines with compression ratios between 9.7:1 to 10.5:1 and 106" to 124" engines with 9:1 to 10:1 CR. Provides massive horsepower and torque from 3000 RPM. 1500-5000 RPM range 585G: Bolt-in 88" to 106" with 9.7:1 to 10.5 CR and 106" to 124" with 9:1 to 10:1 CR. 3500-6000 RPM for 88" to 103" and 2500-5500 for larger engines 625G: 95"-up with 10.0:1 to 10.8:1 CR 640G: 95"-up with 10.5:1 to 11.5:1 CR (stock in S&S 124" engines) Note 1: Adjustable style pushrods must be used with all cams, apart from the 475G and 510G where OEM pushrods can be re-used when desired. Adjustable pushrods are available as MCS 503573 (S&S pushrods only) or as 503574 (S&S pushrods & pushrod cover kit). A S&S set of new cam bearings/gasket kit is available as MCS 503566. Note 2: Using .625", .635" and .640" lift cams will require crankcase clearancing. Note 3: OEM beehive valve springs of 04-17 Dyna; 04-17 Softail and 04-16 Touring models will acommodate valve lifts up to 590" valve lift and, 160 lb. of valve seat force, up to 6200RPM. Running higher than 6200 RPM or lifts greater than 590" will require performance valve springs. 99-17 TWIN CAM IG = Gear Drive cams with Inner Gears only IOG = Gear Drive cams with inner & outer drive gear complete kit S&S - GEAR DRIVEN CAMS
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