This S&S 561 cam is for 1984-1999 Harley-Davidson® big twin models. This cam is recommended for 88 to 96 inch engines with 9.5:1 to 10.5:1 compression ratio. Provides strong midrange power. 3000-5500 rpm. Requires hydraulic tappets and spring spacing.
Not legal for sale or use on CA or EPA pollution controlled motorcycles.