1986-2013 Sportster® & Buell - S&S Cycle

S e ction 4: 1986-2013 Sportster® & Buell ®S&S ®Parts forTwin Cam 96 /103 2007-2013HIGH PERFORMANCE .640" LIFT TRIPLE VALVE SPRINGsNot only designed to increase spring force and reduce the risk of valve float, S&S valve springs alsoeliminate most of the complicated procedures and specialized tools required to prepare cylinderheads for high lift cams up to .640" lift.Parts forTwin Cam 88 ®1999-2006FITMENT• 1986-’03 Harley-Davidson® Sportster®• 1994-’02 Buell®Parts forEvolution ®1984-1999Parts forSportster ® & Buell ®1986-2013Parts forVintage Engines1926-1984Parts forX-Wedge®2007-2012Parts forVictory®2003-2013PERFORMANCEPARTSFEATURES AND BENEFITS• Patented steel top collars are drilled for lightness and to increasecooling oil flow over valve springs• For very high performance applications, kits with low mass titaniumtop collars are also availableKIT CONTENTS• Valve keepers• Top collars• Bottom collars• Outer springs• Middle springs• Inner springs• ShimsS&S® Sidewinder® Valve Springs SpecificationsLift Installed Height Seat Force Force @ Max Lift.640" 1.800" 170 lb. 390 lb.Not recommended for cams with over 0.640" lift90-2078S&S® High Performance .640" Lift Triple Valve SpringsRacingProductsDescriptionPart No.Kit w/ steel top collars 90-2077Kit w/ titanium top collars 90-2078MSRP$131.95$193.95Tools & ShopSuppliesDealer Services& Promo ItemsWarranty &Company PolicyOEM Cross ReferenceAppendix & IndexReplacement parts for .640" LIft Valve SpringsDescriptionPart No. MSRPValve Spring Shim.015" each 90-2086 $1.00.030" each 90-2087 $1.40Bottom each 90-2052 $8.60CollarSteel each 90-2051-S $12.90TopTitanium each 90-2046 $40.95Outer each 90-2050 $8.85SpringMiddle each 90-2049 $6.65Inner each 90-2048 $4.40Valve Keeper (H-D®#18229-83)each 90-2094-S $1.958 pack 50-7166 $13.95NOTESINSTALLATION NOTESUse with shoulderless-style valve guides.Special keepers included fit valves with stock 5⁄16" stems and S&S collars only.Spring seat force is typically 170 lbs. at stock 1.800" installed height.Open force is 390 lbs. at .560" lift, 415 lbs. at .630" lift.May also be used in any other heads that require stock O.D. outer spring.S&S springs will not fit 2005 - later stock heads because of the change in valvespring and valve stem diameter.High lift cams may require the engine builder to obtain additional clearancebetween the piston and valves, the intake and exhaust valves and the upperspring collar and rocker cover. Clearance should also be checked betweenthe rocker arm and valve spring collar as well as between the rocker armand rocker cover. It is imperative that the engine builder confirm theseclearances and check for spring coil bind, even when using parts specificallydesigned for high performance. Most valve train failures can be traced toover-revving or failure to confirm correct clearances during assembly.4-42 Order toll free 866-244-2673