Page 390 of High Performance Parts for American V-Twins 2008 by S&S Cycle

valve train camshafts s&s® 510c bolt-in chain drive camshaft for 1999 06 big twin engines improving on a good thing the s&s 510c bolt in chain drive cam kit for stock displacement harley-davidson® twin cam 88® engines has been very popular with riders of motorcycles with stock 88 or 95 engines installing a chain drive cam is an economical alternative to upgrading to the s&s gear drive system the s&s 510c kit is compatible with the stock rear chain drive sprocket in 2000 06 engines that means that the costly sprocket kit previously required to install earlier versions of the s&s 510c is no longer needed therefore the total installation cost is significantly reduced pictured s&s 510c chain drive cam shafts use the stock harley-davidson® chain drive mechanism and offers an economical option for engines with mild performance upgrades not available for 2006 harley-davidson dynatm models 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 chain drive camshaft for 1999 06 big twins except 2006 dynatm models camshaft set msrp $299.95 33-5182 camshaft installation kit for chain drive cams only msrp $71.95 33-5175 performance s&s s 1999 fxd test bike produced 62 horsepower in stock configuration horsepower jumped to over 82 with 88 ft-lb of torque after the installation of s&s .510 camshafts adjustable pushrods an s&s super e carburetor 6200 rpm screamin eagle® ignition module and khrome werkstm hpplus slip-on mufflers for the whole package see hot set up kit® 11-0025 and dyno charts on page 3-3 of this catalog note since 510c cams are used with the stock chain drive system they are recommended for use with cylinder heads with stock valve springs or performance valve springs with no more than 160 lb of seat force for more demanding applications we recommend the s&s gear drive cams 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 9-5 visit us at www.sscycle.com

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