{"product_id":"s-s-cycle-chain-gear-drive-camshaft-kit-for-harley-davidson-twin-cam","title":"S\u0026S Cycle Chain \u0026 Gear Drive Camshaft Kit for Harley-Davidson Twin Cam","description":"\u003cp\u003eUpgrade your Harley-Davidson Twin Cam engine with premium S\u0026amp;S Cycle Camshaft Kits. Designed to deliver significant increases in torque and horsepower, these kits are available in both chain-drive and gear-drive configurations to suit your specific performance needs. Whether you are looking for a bolt-in boost for a stock touring bike or a high-lift solution for a heavily modified large-displacement engine, these cams provide the reliability and power S\u0026amp;S is known for.\u003c\/p\u003e\n\u003ch3\u003ePerformance Engineering\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGear Drive Kits:\u003c\/strong\u003e Increase valve timing accuracy by eliminating timing chain lash and the stock chain tensioner. The gear drive reverses the rear cam's rotation, providing additional lobe clearance for higher lifts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChain Drive Kits:\u003c\/strong\u003e Designed for use with stock splined drive gears or hydraulic tensioner systems, offering a seamless performance upgrade while maintaining the factory drive style.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Power:\u003c\/strong\u003e Grinds are engineered for specific RPM ranges, from low-end torque for heavy touring bikes to high-RPM horsepower for street performance.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMade in the U.S.A.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications \u0026amp; Compatibility\u003c\/h3\u003e\n\u003cp\u003eThese camshaft kits are compatible with a wide range of Harley-Davidson Twin Cam models (99-06 and 07-17). While several grinds are designed as bolt-in applications for stock engines, higher-lift variants require specialized components for safe operation.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCams with lift over .510\" generally require high-lift valve springs.\u003c\/li\u003e\n\u003cli\u003eGear drive installations require the removal of material from the inner surface of the stock gear cover.\u003c\/li\u003e\n\u003cli\u003eInstaller must check coil bind, valve-to-valve clearance, and valve-to-piston clearance.\u003c\/li\u003e\n\u003cli\u003eS\u0026amp;S recommends the use of adjustable pushrods and new cam bearings\/gaskets for all installations.\u003c\/li\u003e\n\u003cli\u003eA hydraulic press and professional-level tools are required for proper installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong style=\"font-size: 0.875rem;\"\u003eNote:\u003c\/strong\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e Installation kits are required for proper setup and are sold separately. 1999 Twin Cam models require the use of splined cam drive OEM 25716-99. Gear drives may result in inherent increases in valvetrain noise.\u003c\/span\u003e\u003c\/p\u003e","brand":"S\u0026S Cycle","offers":[{"title":"07-17 Twin Cam + 06 Dyna (Exc 17 FLH\/T) \/ Chain Drive \/ Hp103 Series","offer_id":42450388451399,"sku":"SS330-0343","price":366.71,"currency_code":"USD","in_stock":true},{"title":"07-17 Twin Cam + 06 Dyna (Exc 17 FLH\/T) \/ Chain Drive \/ Mr103 Series","offer_id":42450388484167,"sku":"SS330-0470","price":350.58,"currency_code":"USD","in_stock":true},{"title":"07-17 Twin Cam + 06 Dyna (Exc 17 FLH\/T) \/ Chain Drive \/ 510 Series","offer_id":42450388222023,"sku":"SS106-4380","price":350.58,"currency_code":"USD","in_stock":true},{"title":"07-17 Twin Cam + 06 Dyna (Exc 17 FLH\/T) \/ Chain Drive \/ 551 Series","offer_id":42450388254791,"sku":"SS106-4858","price":350.58,"currency_code":"USD","in_stock":true},{"title":"07-17 Twin Cam + 06 Dyna (Exc 17 FLH\/T) \/ Chain Drive \/ 557 Series","offer_id":42450388746311,"sku":"SS330-0105","price":366.71,"currency_code":"USD","in_stock":true},{"title":"07-17 Twin Cam + 06 Dyna (Exc 17 FLH\/T) \/ Chain Drive \/ 570 Series","offer_id":42450388287559,"sku":"SS106-4381","price":350.58,"currency_code":"USD","in_stock":true},{"title":"07-17 Twin Cam + 06 Dyna (Exc 17 FLH\/T) \/ Chain Drive \/ 583 Series","offer_id":42450388320327,"sku":"SS330-0106","price":350.58,"currency_code":"USD","in_stock":true},{"title":"07-17 Twin Cam + 06 Dyna (Exc 17 FLH\/T) \/ Chain Drive \/ 585 Series","offer_id":42450388353095,"sku":"SS106-4382","price":350.58,"currency_code":"USD","in_stock":true},{"title":"07-17 Twin Cam + 06 Dyna (Exc 17 FLH\/T) \/ Chain Drive \/ 625 Series","offer_id":42450388385863,"sku":"SS106-4383","price":366.71,"currency_code":"USD","in_stock":true},{"title":"07-17 Twin Cam + 06 Dyna (Exc 17 FLH\/T) \/ Chain Drive \/ 635 H.o. 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