Andrews Sportster Evolution Cams – Engine

Andrews has a number of performance cam designs for Evolution Sportster engines. All the cams listed will run to 6500 RPM with stock hydraulic lifters. Since the stock lifters are such proven units, we continue to recommend that they not be changed to solids. Andrews Evolution Sportster cams have stock base circle sizes so stock (non-adjustable) pushrods can be used (except for V9 or BV cams). Adjustable aluminum or chrome-moly steel pushrods are also available as shown (fixed length for 1991). The no. 2 (36 teeth) cam drive gear used in models 2000-2022 is not the same as in models 1991-1999.
For this reason separate part numbers are listed for models 2000 to present.

Note: Sportster 1991 engines are considerably different than earlier Evolution Sportsters. Cam gears for earlier Evolution Sportsters will not fit 1991-1999 engines. Models 2000-2022 use a different no. 2 cam drive gear as models 1991-1999. For these reasons different part numbers are listed.
Models 2004 to present have different valve stem diameter and valve springs, installation of cams with more than .515" lift may need different valves, springs and collars.

The following two grinds were originally designed for the Iron Sportster, Andrews altered the lobes shapes with the correct timing for the different roller diameter and rocker ratio. They are proven cam designs and produce lots of usable power for larger Evolution Sportster engines.V9/N9 CAM KITMedium lift cams for stroked engines from 80 to 88CI. Broad torque range to 6000+ RPM with hydraulic lifters, Andrews springs collars and pushrods required (Models 1991 to present need long pushrods)., 1991-1999 (N9 grind)

Andrews camshafts XL91-99 N9 grind

• Category: Cams for Evolution Sportster