{"product_id":"s-s-cycle-84-99-bt-640-camshaft","title":"S\u0026S Cycle 84-99 BT 640 Camshaft","description":"This 640 is for 1984-1999 Harley-Davidson® big twin models with large displacement motors with compression ratios of 10.5 - 11.5:1 or smaller motors with 11:1 - 12:1 compression ratio, does not require as much compression as the 631. For hydraulic tappet, spring spacing is required.\n\u003cul\u003e\n  \u003cli\u003eThis camshaft IS also for 1954-1984 big twins with either the Hydraulic Conversion kit or the Cylinder Head Replacement kit for panhead engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe S\u0026amp;S Cycle SSC33-5108 Big Twin 640 Camshaft is designed to enhance performance on Harley-Davidson big twin models manufactured between 1984 and 1999. This camshaft is suitable for engines with large displacement motors featuring compression ratios of 10.5:1 to 11.5:1 or smaller motors with compression ratios from 11:1 to 12:1. It offers a balanced upgrade for riders seeking increased power and efficiency without requiring the high compression needed for other cam profiles. The camshaft is compatible with hydraulic tappet systems, necessitating spring spacing adjustments during installation. It is particularly suitable for models such as the 1990 Harley Davidson FLHS Electra Glide Sport, FLHTC Electra Glide Classic, FLHTCU Ultra Classic, and several Softail and Springer models from that era. This product is engineered to provide reliable performance and smooth operation, making it an ideal choice for enthusiasts aiming to improve their motorcycle's power output and overall ride quality. Please note that this camshaft is not carbureted-approved and requires carb acknowledgment during installation. Proper installation ensures optimal engine performance and longevity. Trust S\u0026amp;S Cycle's reputation for quality and innovation with this high-performance camshaft designed specifically for your Harley-Davidson big twin engine.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eDesigned for Harley-Davidson big twin models from 1984 to 1999\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSuitable for engines with 10.5:1 to 11.5:1 compression ratios or smaller motors with 11:1 to 12:1 compression\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCompatible with hydraulic tappet systems, requires spring spacing adjustments\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEnhances engine performance and power output\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eEngineered for reliable operation and smooth power delivery\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFits multiple Harley-Davidson models including Softail, Heritage, and Electra Glide series\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\nHarley Davidson FLHR Road King Base 1997\u003cbr\u003e\nHarley Davidson FLHR Road King Base 1998\u003cbr\u003e\nHarley Davidson FLHR Road King Base 1999\u003cbr\u003e\nHarley Davidson FLHRCI Road King Classic Base 1998\u003cbr\u003e\nHarley Davidson FLHRCI Road King Classic Base 1999\u003cbr\u003e\nHarley Davidson FLHRI Road King Base 1996\u003cbr\u003e\nHarley Davidson FLHRI Road King Base 1997\u003cbr\u003e\nHarley Davidson FLHS Electra Glide Sport Base 1984\u003cbr\u003e\nHarley Davidson FLHS Electra Glide Sport Base 1987\u003cbr\u003e\nHarley Davidson FLHS Electra Glide Sport Base 1988\u003cbr\u003e\nHarley Davidson FLHS Electra Glide Sport Base 1989\u003cbr\u003e\nHarley Davidson FLHS Electra Glide Sport Base 1990\u003cbr\u003e\nHarley Davidson FLHS Electra Glide Sport Base 1991\u003cbr\u003e\nHarley Davidson FLHS Electra Glide Sport Base 1992\u003cbr\u003e\nHarley Davidson FLHS Electra Glide Sport Base 1993\u003cbr\u003e\nHarley Davidson FLHTC Electra Glide Classic Base 1984\u003cbr\u003e\nHarley Davidson FLHTC Electra Glide Classic Base 1985\u003cbr\u003e\nHarley Davidson FLHTC Electra Glide Classic Base 1986\u003cbr\u003e\nHarley Davidson FLHTC Electra Glide Classic Base 1987\u003cbr\u003e\nHarley Davidson FLHTC Electra Glide Classic Base 1988\u003cbr\u003e\nHarley Davidson FLHTC Electra Glide Classic Base 1989\u003cbr\u003e\nHarley Davidson FLHTC Electra Glide Classic Base 1990\u003cbr\u003e\nHarley Davidson FLHTC Electra Glide Classic Base 1991\u003cbr\u003e\nHarley Davidson FLHTC Electra Glide Classic Base 1992\u003cbr\u003e\nHarley Davidson FLHTC Electra Glide Classic Base 1993\u003cbr\u003e\nHarley Davidson FLHTC Electra Glide Classic Base 1994\u003cbr\u003e\nHarley Davidson FLHTC Electra Glide Classic Base 1995\u003cbr\u003e\nHarley Davidson FLHTC Electra Glide Classic Base 1996\u003cbr\u003e\nHarley Davidson FLHTC Electra Glide Classic Base 1997\u003cbr\u003e\nHarley Davidson FLHTC Electra Glide Classic Base 1998\u003cbr\u003e\nHarley Davidson FLHTC Electra Glide Classic Base 1999\u003cbr\u003e\nHarley Davidson FLHTCI Electra Glide Classic Base 1996\u003cbr\u003e\nHarley Davidson FLHTCI Electra Glide Classic Base 1997\u003cbr\u003e\nHarley Davidson FLHTCI Electra Glide Classic Base 1998\u003cbr\u003e\nHarley Davidson FLHTCI Electra Glide Classic Base 1999\u003cbr\u003e\nHarley Davidson FLHTCU Electra Glide Ultra Classic Base 1989\u003cbr\u003e\nHarley Davidson FLHTCU Electra Glide Ultra Classic Base 1990\u003cbr\u003e\nHarley Davidson FLHTCU Electra Glide Ultra Classic Base 1991\u003cbr\u003e\nHarley Davidson FLHTCU Electra Glide Ultra Classic Base 1992\u003cbr\u003e\nHarley Davidson FLHTCU Electra Glide Ultra Classic Base 1993\u003cbr\u003e\nHarley Davidson FLHTCU Electra Glide Ultra Classic Base 1994\u003cbr\u003e\nHarley Davidson FLHTCU Electra Glide Ultra Classic Base 1995\u003cbr\u003e\nHarley Davidson FLHTCU Electra Glide Ultra Classic Base 1996\u003cbr\u003e\nHarley Davidson FLHTCU Electra Glide Ultra Classic Base 1997\u003cbr\u003e\nHarley Davidson FLST Heritage Softail Base 1986\u003cbr\u003e\nHarley Davidson FLST Heritage Softail Base 1987\u003cbr\u003e\nHarley Davidson FLST Heritage Softail Base 1988\u003cbr\u003e\nHarley Davidson FLST Heritage Softail Base 1989\u003cbr\u003e\nHarley Davidson FLST Heritage Softail Base 1990\u003cbr\u003e\nHarley Davidson FLSTC Heritage Softail Classic Base 1988\u003cbr\u003e\nHarley Davidson FLSTC Heritage Softail Classic Base 1989\u003cbr\u003e\nHarley Davidson FLSTC Heritage Softail Classic Base 1990\u003cbr\u003e\nHarley Davidson FLSTC Heritage Softail Classic Base 1991\u003cbr\u003e\nHarley Davidson FLSTC Heritage Softail Classic Base 1992\u003cbr\u003e\nHarley Davidson FLSTC Heritage Softail Classic Base 1993\u003cbr\u003e\nHarley Davidson FLSTC Heritage Softail Classic Base 1994\u003cbr\u003e\nHarley Davidson FLSTC Heritage Softail Classic Base 1995\u003cbr\u003e\nHarley Davidson FLSTC Heritage Softail Classic Base 1996\u003cbr\u003e\nHarley Davidson FLSTC Heritage Softail Classic Base 1997\u003cbr\u003e\nHarley Davidson FLSTC Heritage Softail Classic Base 1998\u003cbr\u003e\nHarley Davidson FLSTC Heritage Softail Classic Base 1999\u003cbr\u003e\nHarley Davidson FLSTF Fat Boy Base 1990\u003cbr\u003e\nHarley Davidson FLSTF Fat Boy Base 1991\u003cbr\u003e\nHarley Davidson FLSTF Fat Boy Base 1992\u003cbr\u003e\nHarley Davidson FLSTF Fat Boy Base 1993\u003cbr\u003e\nHarley Davidson FLSTF Fat Boy Base 1994\u003cbr\u003e\nHarley Davidson FLSTF Fat Boy Base 1995\u003cbr\u003e\nHarley Davidson FLSTF Fat Boy Base 1996\u003cbr\u003e\nHarley Davidson FLSTF Fat Boy Base 1997\u003cbr\u003e\nHarley Davidson FLSTF Fat Boy Base 1998\u003cbr\u003e\nHarley Davidson FLSTF Fat Boy Base 1999\u003cbr\u003e\nHarley Davidson FLSTN Heritage Softail Special Base 1994\u003cbr\u003e\nHarley Davidson FLSTN Heritage Softail Special Base 1995\u003cbr\u003e\nHarley Davidson FLSTN Heritage Softail Special Base 1996\u003cbr\u003e\nHarley Davidson FLTR Road Glide Base 1998\u003cbr\u003e\nHarley Davidson FLTR Road Glide Base 1999\u003cbr\u003e\nHarley Davidson FLTRI Road Glide Base 1998\u003cbr\u003e\nHarley Davidson FLTRI Road Glide Base 1999\u003cbr\u003e\nHarley Davidson FXD Dyna Super Glide Base 1995\u003cbr\u003e\nHarley Davidson FXD Dyna Super Glide Base 1996\u003cbr\u003e\nHarley Davidson FXD Dyna Super Glide Base 1997\u003cbr\u003e\nHarley Davidson FXD Dyna Super Glide Base 1998\u003cbr\u003e\nHarley Davidson FXD Dyna Super Glide Base 1999\u003cbr\u003e\nHarley Davidson FXDL Dyna Low Rider Base 1993\u003cbr\u003e\nHarley Davidson FXDL Dyna Low Rider Base 1994\u003cbr\u003e\nHarley Davidson FXDL Dyna Low Rider Base 1995\u003cbr\u003e\nHarley Davidson FXDL Dyna Low Rider Base 1996\u003cbr\u003e\nHarley Davidson FXDL Dyna Low Rider Base 1997\u003cbr\u003e\nHarley Davidson FXDL Dyna Low Rider Base 1998\u003cbr\u003e\nHarley Davidson FXDL Dyna Low Rider Base 1999\u003cbr\u003e\nHarley Davidson FXDWG Dyna Wide Glide Base 1993\u003cbr\u003e\nHarley Davidson FXDWG Dyna Wide Glide Base 1994\u003cbr\u003e\nHarley Davidson FXDWG Dyna Wide Glide Base 1995\u003cbr\u003e\nHarley Davidson FXDWG Dyna Wide Glide Base 1996\u003cbr\u003e\nHarley Davidson FXDWG Dyna Wide Glide Base 1997\u003cbr\u003e\nHarley Davidson FXDWG Dyna Wide Glide Base 1998\u003cbr\u003e\nHarley Davidson FXDWG Dyna Wide Glide Base 1999\u003cbr\u003e\nHarley Davidson FXDX Dyna Super Glide Sport Base 1999\u003cbr\u003e\nHarley Davidson FXLR Low Rider Custom Base 1987\u003cbr\u003e\nHarley Davidson FXLR Low Rider Custom Base 1988\u003cbr\u003e\nHarley Davidson FXLR Low Rider Custom Base 1989\u003cbr\u003e\nHarley Davidson FXLR Low Rider Custom Base 1990\u003cbr\u003e\nHarley Davidson FXLR Low Rider Custom Base 1991\u003cbr\u003e\nHarley Davidson FXLR Low Rider Custom Base 1992\u003cbr\u003e\nHarley Davidson FXLR Low Rider Custom Base 1993\u003cbr\u003e\nHarley Davidson FXLR Low Rider Custom Base 1994\u003cbr\u003e\nHarley Davidson FXR2 Base 1999\u003cbr\u003e\nHarley Davidson FXR3 Base 1999\u003cbr\u003e\nHarley Davidson FXRS Low Glide Base 1984\u003cbr\u003e\nHarley Davidson FXRS Low Glide Base 1985\u003cbr\u003e\nHarley Davidson FXRS Low Glide Base 1986\u003cbr\u003e\nHarley Davidson FXRS Low Glide Base 1987\u003cbr\u003e\nHarley Davidson FXRS Low Glide Base 1988\u003cbr\u003e\nHarley Davidson FXRS Low Glide Base 1989\u003cbr\u003e\nHarley Davidson FXRS Low Glide Base 1990\u003cbr\u003e\nHarley Davidson FXRS Low Glide Base 1991\u003cbr\u003e\nHarley Davidson FXRS Low Glide Base 1992\u003cbr\u003e\nHarley Davidson FXRT Sport Glide Base 1984\u003cbr\u003e\nHarley Davidson FXRT Sport Glide Base 1985\u003cbr\u003e\nHarley Davidson FXRT Sport Glide Base 1986\u003cbr\u003e\nHarley Davidson FXRT Sport Glide Base 1987\u003cbr\u003e\nHarley Davidson FXRT Sport Glide Base 1988\u003cbr\u003e\nHarley Davidson FXRT Sport Glide Base 1989\u003cbr\u003e\nHarley Davidson FXRT Sport Glide Base 1990\u003cbr\u003e\nHarley Davidson FXRT Sport Glide Base 1991\u003cbr\u003e\nHarley Davidson FXRT Sport Glide Base 1992\u003cbr\u003e\nHarley Davidson FXSB Low Rider - Belt Base 1984\u003cbr\u003e\nHarley Davidson FXSB Low Rider - Belt Base 1985\u003cbr\u003e\nHarley Davidson FXST Softail Standard Base 1984\u003cbr\u003e\nHarley Davidson FXST Softail Standard Base 1985\u003cbr\u003e\nHarley Davidson FXST Softail Standard Base 1986\u003cbr\u003e\nHarley Davidson FXST Softail Standard Base 1987\u003cbr\u003e\nHarley Davidson FXST Softail Standard Base 1988\u003cbr\u003e\nHarley Davidson FXST Softail Standard Base 1989\u003cbr\u003e\nHarley Davidson FXST Softail Standard Base 1990\u003cbr\u003e\nHarley Davidson FXST Softail Standard Base 1991\u003cbr\u003e\nHarley Davidson FXST Softail Standard Base 1992\u003cbr\u003e\nHarley Davidson FXST Softail Standard Base 1993\u003cbr\u003e\nHarley Davidson FXST Softail Standard Base 1994\u003cbr\u003e\nHarley Davidson FXST Softail Standard Base 1995\u003cbr\u003e\nHarley Davidson FXST Softail Standard Base 1996\u003cbr\u003e\nHarley Davidson FXST Softail Standard Base 1997\u003cbr\u003e\nHarley Davidson FXST Softail Standard Base 1998\u003cbr\u003e\nHarley Davidson FXST Softail Standard Base 1999\u003cbr\u003e\nHarley Davidson FXSTB Night Train Base 1999\u003cbr\u003e\nHarley Davidson FXSTC Softail Custom Base 1986\u003cbr\u003e\nHarley Davidson FXSTC Softail Custom Base 1987\u003cbr\u003e\nHarley Davidson FXSTC Softail Custom Base 1988\u003cbr\u003e\nHarley Davidson FXSTC Softail Custom Base 1989\u003cbr\u003e\nHarley Davidson FXSTC Softail Custom Base 1990\u003cbr\u003e\nHarley Davidson FXSTC Softail Custom Base 1991\u003cbr\u003e\nHarley Davidson FXSTC Softail Custom Base 1992\u003cbr\u003e\nHarley Davidson FXSTC Softail Custom Base 1993\u003cbr\u003e\nHarley Davidson FXSTC Softail Custom Base 1994\u003cbr\u003e\nHarley Davidson FXSTC Softail Custom Base 1995\u003cbr\u003e\nHarley Davidson FXSTC Softail Custom Base 1996\u003cbr\u003e\nHarley Davidson FXSTC Softail Custom Base 1997\u003cbr\u003e\nHarley Davidson FXSTC Softail Custom Base 1998\u003cbr\u003e\nHarley Davidson FXSTC Softail Custom Base 1999\u003cbr\u003e\nHarley Davidson FXSTS Springer Softail Base 1988\u003cbr\u003e\nHarley Davidson FXSTS Springer Softail Base 1989\u003cbr\u003e\nHarley Davidson FXSTS Springer Softail Base 1990\u003cbr\u003e\nHarley Davidson FXSTS Springer Softail Base 1991\u003cbr\u003e\nHarley Davidson FXSTS Springer Softail Base 1992\u003cbr\u003e\nHarley Davidson FXSTS Springer Softail Base 1993\u003cbr\u003e\nHarley Davidson FXSTS Springer Softail Base 1994\u003cbr\u003e\nHarley Davidson FXSTS Springer Softail Base 1995\u003cbr\u003e\nHarley Davidson FXSTS Springer Softail Base 1996\u003cbr\u003e\nHarley Davidson FXSTS Springer Softail Base 1997\u003cbr\u003e\nHarley Davidson FXSTS Springer Softail Base 1998\u003cbr\u003e\nHarley Davidson FXSTS Springer Softail Base 1999\u003cbr\u003e\nHarley Davidson FXSTSB Bad Boy Base 1995\u003cbr\u003e\nHarley Davidson FXSTSB Bad Boy Base 1996\u003cbr\u003e\nHarley Davidson FXSTSB Bad Boy Base 1997\u003cbr\u003e\nHarley Davidson FXWG Wide Glide Base 1984\u003cbr\u003e\nHarley Davidson FXWG Wide Glide Base 1985\u003cbr\u003e\nHarley Davidson FXWG Wide Glide Base 1986","brand":"S\u0026S Cycle","offers":[{"title":"Default Title","offer_id":53943314350396,"sku":"ssc33-5108","price":255.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1865\/9007\/files\/9e76e071ed1c4580655faaa6ba50e19a.png?v=1785189101","url":"https:\/\/necycleshop.com\/products\/s-s-cycle-84-99-bt-640-camshaft","provider":"NE Cycle Shop","version":"1.0","type":"link"}