{"product_id":"s-s-cycle-camshafts-harley-davidson-dyna","title":"S\u0026S Cycle 557C Chain Drive Camshaft Kit - Harley Dyna \u0026 Big Twin","description":"\u003c!-- vt:seo-start --\u003e\n\u003cdiv class=\"vt-brand-bio\" style=\"background:#f6f6f6;border-left:4px solid #c8102e;padding:14px 18px;margin:0 0 20px;border-radius:4px;\"\u003e\n\u003ch2 style=\"margin:0 0 6px;font-size:1.05em;\"\u003eAbout S\u0026amp;S Cycle\u003c\/h2\u003e\n\u003cp style=\"margin:0;font-size:0.95em;line-height:1.6;\"\u003eS\u0026amp;S Cycle has built American V-twin performance parts in Viola, Wisconsin since 1958 — flywheels, carburetors, cams, cylinder heads and complete crate engines. When a Harley owner talks about a 124, a 128 or a 131 build, they are usually talking about S\u0026amp;S. Few names carry more weight with engine builders in this space.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"line-height:1.65;\"\u003eUnleash more power from your Harley-Davidson Dyna or 2007-later Big Twin engine with the S\u0026amp;S Cycle 557C Chain Drive Camshaft Kit. Engineered for improved breathing and performance, this camshaft kit is a direct-fit replacement designed to work seamlessly with your stock ignition and fuel systems.\u003c\/p\u003e\n\u003ch3 style=\"margin:20px 0 6px;\"\u003eWhy riders pick this\u003c\/h3\u003e\u003cul style=\"padding-left:20px;margin:0 0 16px;\"\u003e\n\u003cli style=\"margin:3px 0;\"\u003eEnhanced 557C cam profile for increased valve lift\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eChain drive design for reliable operation\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eDirect-fit replacement for stock camshafts\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eWorks with factory ignition and fuel systems\u003c\/li\u003e\n\u003cli style=\"margin:3px 0;\"\u003eDesigned for Dyna and 2007-later Big Twin platforms\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe S\u0026amp;S Cycle 557C camshaft delivers an enhanced valve lift profile, making it an excellent choice for riders looking to uncork their V-twin. This chain drive design integrates smoothly into your existing setup, providing a noticeable boost in power delivery without requiring extensive modifications.\u003c\/p\u003e\u003ch3\u003eOptimized Performance Profile\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEnhanced 557C cam profile with increased valve lift\u003c\/li\u003e\n\u003cli\u003eReliable chain drive design for consistent operation\u003c\/li\u003e\n\u003cli\u003eDirect-fit replacement for straightforward installation\u003c\/li\u003e\n\u003cli\u003eCompatible with stock ignition and fuel systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eUnlock Your Engine's Potential\u003c\/h3\u003e\u003cp\u003eWhether you're looking to gain an edge on the street or simply want a more responsive ride, the 557C cam kit is a solid foundation for performance. While it works with stock systems, a proper dyno tune can further optimize the air-fuel mixture and ignition timing, ensuring you get the most out of your new camshafts.\u003c\/p\u003e\n\u003ch3 style=\"margin:20px 0 6px;\"\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e S\u0026amp;S Cycle\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part #:\u003c\/strong\u003e 330-0105\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCategory:\u003c\/strong\u003e Engine Components \/ Camshafts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 4.05 lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 style=\"margin:22px 0 8px;\"\u003eCommon questions\u003c\/h3\u003e\u003cdiv class=\"vt-faq\"\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eWill these camshafts fit my pre-2007 Big Twin engine?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eThis 557C cam kit is specifically designed for 2006 Dyna models and 2007-later Big Twin engines with chain drive camshaft systems. Please confirm your engine's year and cam drive type.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eDo I need to retune my bike after installing these cams?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eWhile the cams are designed to work with stock ignition and fuel systems, a custom dyno tune is highly recommended to fully optimize performance, fuel efficiency, and overall engine longevity with the increased valve lift.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 12px;\"\u003e\n\u003cp style=\"margin:0 0 3px;font-weight:600;\"\u003eIs this a complicated installation?\u003c\/p\u003e\n\u003cp style=\"margin:0;line-height:1.6;\"\u003eThis S\u0026amp;S Cycle camshaft kit is a direct replacement for your factory camshafts. However, camshaft installation requires specialized tools and expertise, so professional installation is recommended.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"vt-confidence\" style=\"border-top:1px solid #e5e5e5;margin:24px 0 0;padding:16px 0 0;font-size:0.92em;line-height:1.6;\"\u003e\n\u003ch3 style=\"margin:0 0 6px;\"\u003eOrdering from Vtwinbikers\u003c\/h3\u003e\n\u003cul style=\"padding-left:20px;margin:0;\"\u003e\n\u003cli\u003eBrand new, sourced through authorized US distribution — never used, never grey-market.\u003c\/li\u003e\n\u003cli\u003eNot sure it fits? Use \u003cstrong\u003eShop by Bike\u003c\/strong\u003e to filter by your year and model, or email us and we will confirm before you order.\u003c\/li\u003e\n\u003cli\u003eHarley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"BreadcrumbList\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/vtwinbikers.com\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Camshafts\",\"item\":\"https:\/\/vtwinbikers.com\/collections\/all\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"S\u0026S Cycle\",\"item\":\"https:\/\/vtwinbikers.com\/collections\/s-s-cycle\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"S\u0026S Cycle 557C Chain Drive Camshaft Kit - Harley Dyna \u0026 Big Twin\",\"item\":\"https:\/\/vtwinbikers.com\/products\/s-s-cycle-camshafts-harley-davidson-dyna\"}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Will these camshafts fit my pre-2007 Big Twin engine?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"This 557C cam kit is specifically designed for 2006 Dyna models and 2007-later Big Twin engines with chain drive camshaft systems. Please confirm your engine's year and cam drive type.\"}},{\"@type\":\"Question\",\"name\":\"Do I need to retune my bike after installing these cams?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"While the cams are designed to work with stock ignition and fuel systems, a custom dyno tune is highly recommended to fully optimize performance, fuel efficiency, and overall engine longevity with the increased valve lift.\"}},{\"@type\":\"Question\",\"name\":\"Is this a complicated installation?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"This S\u0026S Cycle camshaft kit is a direct replacement for your factory camshafts. However, camshaft installation requires specialized tools and expertise, so professional installation is recommended.\"}}]}\u003c\/script\u003e\n\u003c!-- vt:seo-end --\u003e","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":53040430284911,"sku":"T14-663326","price":418.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/6734\/6543\/files\/output_7212f40a-f2da-4746-aa4d-07f9172cbf65.png?v=1779566561","url":"https:\/\/vtwinbikers.com\/products\/s-s-cycle-camshafts-harley-davidson-dyna","provider":"Vtwinbikers","version":"1.0","type":"link"}