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Columbus
My Store
Open Today Until 8pm
3635 West Broad Street
Columbus, Ohio 43228
614-869-3115
What’s going on at Cycle Gear
Services
Experienced staff support available on site
Store Events
Meet the local riding community for Bike Nights & more
Shop the Store
Find out what’s in stock and ready to go
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Uh oh - Our system doesn't think this part will fit your 2023 Kawasaki Z900 SE (change vehicle selection)

S&S Cycle

S&S Cycle 640 Cam For Harley Big Twin Evo 1984-1999

Current price: $299.95
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Members get up to $30.00 in total value with this purchase.

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S&S Cycle 640 Cam For Harley Big Twin Evo 1984-1999 Installation

S&S 640 Cam For Harley Big Twin Evo

Features:

  • For large displacement motors with compression ratios of 10.5-11.5:1
  • Can be used in smaller motors with 11:1-12:1 compression ratio
  • The S&S 640 cam features the latest design in controlled ramps and is intended for hydraulic lifters
  • With lower TDC lifts and faster ramps than the S&S 631 cam, the 640 cam builds higher cylinder pressure
  • Therefore it does not require as much compression as the 631

640 Cam Info:

  • Designed for large-displacement engines (110") with 10.5:1-11.5:1 compression ratio or smaller engines (96"-107") with 11:1-12:1 compression ratio
  • 3000 RPM-6000 RPM
  • Does not require as much compression as 631 cam and provides more linear power delivery
  • Less overlap and fast ramps build higher cylinder pressure
  • Lower TDC lift makes installation easier
  • Intake open/close 25°/60°
  • Exhaust open/close 65°/20°
  • Intake duration 265°
  • Exhaust duration 265°
  • Lift .640"
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Uh oh - Our system doesn't think this part will fit your 2023 Kawasaki Z900 SE (change vehicle selection)

Fitment Notes & Exceptions
  • This product is not legal for street use on an emissions-controlled vehicle. It may be used on dedicated competition or pre-pollution-controlled vehicles only.
    • Installer must check for coil bind, valve-to-valve clearance, valve-to-piston clearance, and cam lobe to case clearance
    • Cam bearings and gaskets must be replaced when installing new cams
    • Works with hydraulic lifters
    • High-lift valve springs are required to run this cam in all models

    This Product Fits:


    Harley Davidson
    Disc Glide FXRDG 1984
    Dyna Convertible FXDS 1994, 1995, 1996, 1997, 1998
    Dyna Glide Custom FXDC 1992
    Dyna Glide Daytona FXDB-D 1992
    Dyna Glide Sturgis FXDB-S 1991
    Dyna Low Rider FXDL/I 1993-1998
    Dyna Super Glide FXD/I 1995, 1996, 1997, 1998
    Dyna Wide Glide FXDWG/I 1993-1998
    Electra Glide Classic FLHTC/I 1984-1998
    Electra Glide Special FLHX 1984
    Electra Glide Sport FLHS 1984-1993
    Electra Glide Standard FLHT/I 1984-1998
    Electra Glide Ultra Classic FLHTCU/I 1989-1998
    Fat Bob FXEF 1985
    FLH 1984, 1985
    Low Glide/Low Rider FXRS 1984-1993
    Low Rider Chrome FXRC 1985, 1986, 1987, 1988
    Low Rider Custom FXLR 1987-1994
    Low Rider Sport FXRS-SP 1987-1993
    Road Glide FLTR/I 1998
    Road King Classic FLHRC/I 1998
    Road King FLHR/I 1994, 1995, 1996, 1997, 1998
    Softail Bad Boy Springer FXSTSB 1995, 1996, 1997
    Softail Custom FXSTC/I 1986-1999
    Softail Deuce FXSTD/I 1999
    Softail Fat Boy FLSTF/I 1990-1999
    Softail Heritage Classic FLSTC/I 1987-1999
    Softail Heritage FLST/I 1986, 1987, 1988, 1989, 1990
    Softail Heritage Springer FLSTS/I 1997, 1998, 1999
    Softail Night Train FXSTB/I 1999
    Softail Nostalgia FLSTN/I 1993
    Softail Special FLSTN/I 1994, 1995, 1996
    Softail Springer FXSTS/I 1988-1999
    Softail Standard FXST/I 1984-1999
    Sport Glide FXRT 1984-1992
    Sport Glide Grand Touring FXRD 1986
    Super Glide FXE 1984, 1985
    Super Glide FXR 1994
    Tour Glide Classic FLTC/I 1984-1991
    Tour Glide FLT 1984, 1985, 1986
    Tour Glide Ultra Classic FLTCU/I 1989-1996
    Wide Glide FXWG 1984, 1985, 1986
    Product Style Item # Store SKU Manufacturer Product # Availability
    Product Style S&S Cycle 640 Cam For Harley Big Twin Evo 1984-1999 Item # 959720 Store SKU Manufacturer Product # 33-5108 Availability In Stock: Ships within 24 hours
    $39.99/yr.
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