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S&S 631 Camshaft

Item: 359413

$269.96

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Select Your Vehicle - Fitment Guaranteed

S&S 631 Camshaft


  • For high RPM applications in all street and racing engines with 11:1 and higher compression ratios
  • Develops maximum performance from about 4500 RPM on up
  • Great performance cam, but expect more wear and tear on valve train components
  • Valve spring spacing and other normal clearance checks required
  • Spring spacing is required
  • For solid or hydraulic tappets
  • Made in the USA
Specification Details
Country of Origin USA
Engine Type Evolution Big Twin
Exhaust Duration 275 degrees
Exhaust Lift .221 in.
Exhaust Lobe Center 108.5 degrees
Exhaust Timing (Close) 29 degrees
Exhaust Timing (Open) 66 degrees
Intake Duration 275 degrees
Intake Lift .281 in.
Intake Lobe Center 103.5 degrees
Intake Timing (Close) 61 degrees
Intake Timing (Open) 34 degrees
Valve Lift .630 in.

Vehicle Fitment


Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.

Harley Davidson
  • CVO FXR2 1999
  • CVO FXR3 1999
  • FLHR Electra Glide Road King 1994
  • FLHR Road King 1995-1998
  • FLHRCI Road King Classic 1998
  • FLHRI Road King 1996-1997
  • FLHS Electra Glide Sport 1987-1993
  • FLHT Electra Glide 1986-1987
  • FLHT Electra Glide Standard 1995-1998
  • FLHTC Electra Glide Classic 1984-1998
  • FLHTCI Electra Glide Classic 1996-1998
  • FLHTCU Ultra Classic Electra Glide 1989-1997
  • FLHTCUI Ultra Classic Electra Glide 1995-1998
  • FLST Heritage Softail 1986-1990
  • FLSTC Heritage Softail Classic 1988-1999
  • FLSTF Softail Fat Boy 1990-1999
  • FLSTN Heritage Softail Nostalgia 1993
  • FLSTN Heritage Softail Special 1994-1996
  • FLSTS Heritage Springer Softail 1997-1999
  • FLTC Tour Glide Classic 1984-1991
  • FLTCU Ultra Classic Tour Glide 1989-1995
  • FLTCUI Ultra Classic Tour Glide 1996
  • FLTR Road Glide 1998
  • FLTRI Road Glide 1998
  • FXD Dyna Super Glide 1995-1998
  • FXDB Dyna Daytona 1992
  • FXDB Dyna Sturgis 1991
  • FXDC Dyna Glide Custom 1992
  • FXDL Dyna Low Rider 1993-1998
  • FXDS-CONV Dyna Convertible 1994-1998
  • FXDWG Dyna Wide Glide 1993-1998
  • FXLR Low Rider Custom 1987-1994
  • FXRC Low Rider Chrome 1987
  • FXRD Grand Touring Edition 1986
  • FXRDG Disc Glide 1984
  • FXRS Low Glide 1984-1992
  • FXRS-CONV Low Rider Convertible 1990-1993
  • FXRS-SP Low Rider Sport Edition 1986-1993
  • FXRT Sport Glide 1984-1992
  • FXST Softail Standard 1999
  • FXSTB Softail Night Train 1999
  • FXSTC Softail Custom 1986-1999
  • FXSTS Springer Softail 1988-1999
  • FXSTSB Softail Bad Boy 1995-1997

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