1926-1984 Vintage Models - S&S Cycle

1926-1984 Vintage ModelsS&S ®Super Stock ® Cylinder HeadsFor 1966-’84 Big Twin EnginesSuper Stock replacement heads for 1966-‘84 shovelhead engines maintain a stock appearance,but offer improved port designs for better performance. These are the same heads used inFlathead Power® SH-Series engines.Fitment• 1966-‘84 big twins• SH-Series enginesParts forTwin Cam 96 /103 2007-2012Parts forTwin Cam 88 ®1999-2006Features and benefits• Stock appearance and improved performance• S&S .590" lift valve springs• Fits stock intake manifolds and exhaust pipes• Rocker cover fastened with 5/16"-18 hex-head cap screwsOptions• Stock bore or 35/8" bore• O-ring or rubber band style manifold• Natural aluminum or wrinkle black powdercoat finish• Dual spark plugs and/or external oil return lines by special orderKit Contents• Front and rear cylinder head complete with valves and springs• Head, rocker and exhaust gaskets• Mounting hardware and instructionsNot legal for sale or use on CA or EPA pollution controlled vehicles 1978 and later.Replacement parts on page 5-88S&S ®Replacement Cylinder Heads90-1496S&S® CYLINDER HEAD KITS FOR 1966-'84 BIG TWIN ENGINESEngine YearComplete with Valves & .590" Springs - Assembledand TypeBoreAluminum Finish Black Powdercoat FinishStock 90-1496 90-15961966-'7835/8" 90-1497 90-1597(O-ring)35/8" Dual Plug 90-1491 –Stock 90-1498 90-15981979-'8435/8" 90-1499 90-1599(Band)35/8" Dual Plug 90-1488 –Special Order* Specify 90-1490***Use this special order part number to order assembled or unassembled cylinder heads with springoptions, and special finish. Front or rear heads available by special order.**Special Order: Download the Special Order Form at sscycle.com/soformsFor P-Series Engines & Retro Conversion KitsThese cylinder heads provide a nostalgic look and a performance boost over stock. The stock shovelheadbolt pattern and the availability of heads with stock bore and S&S 35/8" bore fire-ring machining makesthem compatible with most shovel cylinders. The intake ports accept o-ring manifolds for shovels, andthe exhaust ports will bolt up to any exhaust system for a shovel engine. Although the top surface of theheads accepts a stock pan rocker cover, a special S&S rocker cradle is required to support the rocker arms.The cradles are designed to be used with S&S roller rocker arms for shovel engines, and top end oilingmust be done through the pushrods. S&S Quickee Adjustable pushrods are recommended. 1979-’84o-ring style pushrod covers such as S&S part #93-4040 or equivalent are required.Fitment• P-Series engines• 1966-‘84 big twins• Valve train update kit – available through Special OrderFeatures and benefits• S&S .590" lift valve springs• Late style valve chamber eliminates oil pooling• Cooling channel between combustion chamber and rocker armsOptions• Stock bore or 35/8" bore• Dual spark plug available for 35/8" bore and special order• Stock pan bolt pattern available through special orderKit Contents• Front and rear cylinder head complete with valves and springs• Head, pan and exhaust gasketsReplacement Cylinder HeadsFor S&S® P-Series Engines and retro conversion kitsHead StyleComplete Kit (with Valves and Springs)Stock Bore 106-041435/8" Bore 106-041735/8" Bore Dual Plug 106-0420Special Order 1 106-0922**1Use this special order part number to order assembled or unassembled cylinder heads with springoptions, and special finish.**Special Order: Download the Special Order Form at sscycle.com/soformsReplacement parts on page 5-91NOTE: These are not stock replacement cylinder heads for panhead engines. They will notfit on stock panhead cylinders.Visit us at www.sscycle.comPERFORMANCEPARTSParts forEvolution ®1984-1999Parts forSportster ® & Buell ®1986-2012Parts forVintage Engines1926-1984Parts forX-Wedge®2007-2012Parts forVictory®, Off-road& MetricRacingProductsTools & ShopSuppliesDealer Services& Promo ItemsWarranty &Company PolicyOEM Cross ReferenceAppendix & Index5-49