S&S Camshaft Kit - Easy Start - 551 Chain Drive - Big Twin '99-'06

The S&S Camshaft Kit adds power and throttle response with a performance cam profile built for your engine.

This is the 551 Series grind. See the cam specs for lift, duration and valve events, and confirm your engine's compression and valvetrain are matched to the cam before installing.

Fits Harley-Davidson Touring (1999-2006), Softail (2000-2006) and Dyna (1999-2005) models. Check the fitment chart below to confirm your exact year and model.

• Allows for easy start by initially reducing crank compression, but once the engine starts and rpm increases, the compression release lobe is centrifugally retracted and the engine runs normally, with full compression, and without any loss in performance
• Optimized for 88"/96"/103" to 106" Touring bike with slip-on mufflers and 9.0:1 to 9.0:9 compression with stock starter
• Bolt-in for stock or mildly modified Touring models
• Greatly improves low-end and midrange torque
• Strongest from idle to 4000 rpm
• Includes camshafts, gearcover gasket, bearings, retaining ring, o-ring, threat lock and instructions
• Made in the USA
• Not recommended for compression ratios of 10.0:1 or greater.
• Installer must check coil bind, valve-to-valve clearance and valve-to-piston clearance.
• Not for models with OEM compression releases.
• Can be used with stock pushrods, lifters, and springs (unless noted).