Free shipping on orders over $50!

S&S Cycle 631 Cam - Evolution

S&S Cycle

  • S&S Cams are tested on the dyno, street and track before being offered to the public
  • With hundreds of hours of testing on each cam, you know you are getting the best cam S&S can produce
  • Made in the U.S.A.
  • Makes best power from 4500 rpm and up
  • Requires high-lift springs
  • For all high-compression engines 11:1 and up compression
  • Works with solid or hydraulic tappets
  • Installer must check coil bind, valve-to-valve clearance, valve-to-piston clearance and cam lobe to case clearance.

  • NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLES.