1926-1984 Vintage Models - S&S Cycle

S e ction 5:Flathead Power ® by S&S ®Parts forTwin Cam 96 /103 2007-2012Parts forTwin Cam 88 ®1999-2006Parts forEvolution ®1984-1999.550" Lift Double Valve Spring KitFor 1948-’84 big twins with up to .550" lift.• Includes 4 inner springs, 4 outer springs, 4 aluminum top collars and late 1981-'85bottom covers• Use with stock-style bottom collar, valve guides, valves with stock 3⁄8" stem, and stockkeepers• Compatible with thin-stem valves if thicker keepers (that maintain correct valvestem-top collar engagement) are used• Late single bottom collars are available for use in S&S cylinder heads for shovels andstock late 1981-’85 heads90-20531926-1984 Vintage ModelsHigh-Performance Valve Spring KitsFor 1948-'84 Big Twin EnginesParts forSportster ® & Buell ®1986-2012Parts forVintage Engines1926-1984Parts forX-Wedge®2007-2012PERFORMANCEPARTSPart Number.550 Lift Valve Spring KitFor 1948-'84 Panhead and Shovelhead Engines ........................90-2053Bottom Collar – Late 1981-’84 (H-D® #18222-81) (each). ................90-2038S&S® .550" Valve Springs Specifications - 1948-’84 Big TwinLiftInstalledHeightSeat ForceForce @ Max Lift.550" 1.500" 150 lb. 343 lb.NOTE: Panhead engines usually require clearancing between rocker cover and top collar.Parts forVictory®, Off-road& MetricRacingProductsTools & ShopSuppliesDealer Services& Promo ItemsWarranty &Company Policy.590" Lift Triple Valve Spring KitFor 1948-’84 big twin with up to .590" lift.• Includes 4 steel top collars, 4 bottom collars, 4 each outer, middle, and inner springs,shims, and 8 keepers• Use with stock valve guides, stock valves with 3⁄8" stem, and stock keepers• Compatible with thin-stem valves if thicker keepers (that maintain correct valvestem-top collar engagement) are usedPart Numbers.590" Lift Valve Spring KitsFor 1948-Early ‘81 Panhead and Shovelhead Engines (H-D® #18201-57B, 18204-36A) ..90-2060For Late 1981-’84 and All S&S Cylinder Heads ......................... 90-2063S&S® .590" Valve Springs Specifications - 1948-’84 Big TwinLiftInstalledHeightSeat ForceForce @ Max Lift.590" 1.480" 157 lb. 356 lb.90-2063OEM Cross ReferenceAppendix & IndexNOTE:.590" spring kit is year-group specific because of different bottom collars supplied with early and late kits. S&S heads require late 1981-’84 style kit, part #90-2063 or part #90-2064.When ordering replacement valve springs for S&S cylinder heads for shovelhead engines, order the 1981-’84 style part #90-2063 or part #90-2064 kits.5-62Order toll free 866-244-2673