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
For 84-99 Big Twin Evolution Engines
For large displacement engines (110"+) with 10.5 to 11.5:1 compression and smaller engines (96-107") with 11.1 to 12:1 compression
Less overlap and fast ramps build higher cylinder pressure
Lower TDC lift makes installation easier
Designed for use with hydraulic tappets
Requires high-lift springs
Made in the U.S.A.
NOTE: Installer must check coil bind, valve-to-valve clearance, valve-to-piston clearance and cam lobe to case clearance
Valve Timing Open/Close:
Valve Lift: .640"
Lift @ TDC:
Spring Spacing is requred
Hydraulic tappet required
The Air Resources Board (ARB) does not permit the use of aftermarket emission-related parts that alter the air/fuel ratio of an emission-controlled vehicle. Due to these legal restrictions this part cannot be shipped to California.