Page 44 of 2008 Performance Guide by S&S Cycle

1958-2008 50th ann iversary s&s® gear drive camshaft kits for 1999-up big twin engines meeting the needs of high performance engines the patented s&s gear drive cams are a must in order to achieve the full potential from high performance harleydavidson® twin cam 88® engines since the chain drive system used in stock twin cam 88 engines is not adequate to accurately control valve action at high rpm when using high lift cams and high performance valve springs a different system was needed the s&s gear drive system was developed to improve performance and to eliminate potential engine damage caused by failure of the chain and tensioner system s&s® gear drive cam specifications cam name 510g 546g 570g 585g 625g 640g 675g complete kit 33-5177 33-5230 33-5178 33-5179 33-5180 33-5181 33-5231 msrp $719.95 $719.95 $719.95 $719.95 $744.95 $744.95 $769.95 valve timing open/close intake 20°/38° 5°/55° 20°/40° 20°/45° 20°/55° 25°/60° 25°/64° exhaust 52°/20° 52°/5° 55°/20° 60°/20° 60°/20° 65°/25° 70°/25° valve duration intake 238° 240° 240° 245° 255° 265° 269° exhaust 252° 237° 255° 260° 260° 270° 275° valve lift .510 .546 .570 .585 .625 .640 .675 centerline intake 99.0° 115.0° 100.0° 102.5° 107.5° 107.5° 109.5° exhaust 106.0° 113.5° 107.5° 110.0° 110.0° 110.0° 112.5° lift tdc intake .187 .126 .187 .186 .189 .228 .235 exhaust .178 .106 .179 .179 .184 .214 .205 see for yourself why s&s gear drive cams are better when s&s goes on the road to trade shows and rallies we convince thousands of dealers and riders alike of the advantages of the s&s gear drive cams with our gear drive cam display this display consists of a metal fixture which holds an assembled set of s&s gear drive cams and a set of stock chain drive cams it allows anyone to compare the s&s gear drive cam drive with the stock chain drive simply by turning the t-handles on each set up the amazing difference in force required to turn the two cam drives has made believers out of just about everyone who has tried it see the s&s gear drive cam display at your local s&s dealer feel how much less power is needed to turn the s&s cams count how many moving parts are eliminated see how oil contamination from chain tensioner debris is eliminated find an s&s dealer near you log on to www.sscycle.com and check our our dealer locator email us at sscust@sscycle.com 44

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