Page 45 of 2008 Performance Guide by S&S Cycle

s&s performance guide see your s&s dealer s&s 510c bolt-in chain drive camshaft s&s 510c camshaft set #33-5182 is designed to be used with the stock harley-davidson chain drive system and is an economical way to improve the performance of stock and slightly modified street engines the s&s 510c cams are as quiet as stock but produce significant power increases across the rpm range especially above 3000 rpm the 510c cams are compatible with the stock splined chain sprocket used in 2000 06 models except dynatm but may be used in 1999 engines if the stock 2000-up style splined rear cam sprocket is used camshaft set msrp $299.95 33-5182 camshaft installation kit for chain drive cams only msrp $71.95 33-5175 s&s® chain drive cam specification cam name 510c valve timing open/close intake 20°/38° exhaust 52°/20° valve duration intake 238° exhaust 252° .510 valve lift intake 99° centerline exhaust 106° intake .187 lift tdc exhaust .178 s&s® cams for 1986 03 sportster® models note 1991 99 style pinion gear must be used with s&s cams in 2000 03 engines with stock flywheels see your s&s dealer for more information s&s® cams for 1986 03 harley-davidson® sportster® and buell® models cam name s&s 500 s&s 555 s&s 600 1 2 application 74 to 89 with 9:1 to 10.5:1 cr 89 to 100 with less than 9.5:1 cr good torque easy installation 74 to 100 with 9.5 to 11:1 cr better mid range and top end 89 and larger engines 9.5 to 10.5 cr good for ported heads model year 1986 90 1991-up 1986 90 1991-up 1986 90 1991-up cam part no 33-5081 33-5082 33-5083 33-5084 33-5125 33-5126 msrp $289.95 $289.95 $289.95 $289.95 $289.95 $289.95 valve timing1 open/close intake 34°/50° exhaust 56°/28° valve duration intake 264° exhaust 264° valve lift lift tdc2 intake .241 exhaust .212 spring spacing required yes tappet3 type required solid or hydraulic solid or hydraulic solid or hydraulic .500 33°/53° 20°/55° 53°/33° 60°/20° 266° 255° 266° 260° .555 .600 3 .240 .194 .240 .184 yes timing designation is function of zero lash .053 off base circle tdc lifts are measured at the valve and are for reference only overlap valve lifts must be checked on assembled motor 3 requires cam lobe clearancing when used in stock crankcases 45 visit us at www.sscycle.com

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