561 Camshaft

Camshaft - 561 - Evolution Big Twin

• 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 80"-96" engines at 9.5:1-10.5:1 compression ratio
• Provides strong midrange power, 3000-5500 rpm
• Works with hydraulic tappets
• Requires high-lift springs
• Spring spacing required
• Made in the USA
• Installer must check coil bind, valve-to-valve clearance, valve-to-piston clearance and cam lobe to case clearance.