S&S Cycle 551 Easy Start Camshaft Kit - 106-5293

Upgrade your Harley-Davidson Touring model with the S&S Cycle 551 Easy Start Camshaft Kit. This kit delivers a significant boost in low-end and midrange torque, making it ideal for riders seeking enhanced throttle response and improved overall performance. Designed for easy installation and optimized for specific engine configurations, this kit is a must-have for motorcycle enthusiasts.

Description

The S&S Cycle 551 Easy Start Camshaft Kit is engineered to provide an easy starting experience by initially reducing crank compression. Once the engine starts and RPM increases, the compression release lobe retracts, allowing the engine to run at full compression without sacrificing performance. Optimized for 88", 96", 103" to 106" Touring bikes with slip-on mufflers and compression ratios from 9.0:1 to 9.9:1 using the stock starter, this bolt-in kit greatly improves torque from idle to 4000 RPM. The camshafts are chain driven, ensuring reliable performance. This kit is designed for stock or mildly modified Touring models, offering a noticeable improvement in power and rideability. Experience the difference with S&S Cycle's commitment to quality and performance.

Features & highlights

• Easy Start technology reduces cranking compression for effortless starting.
• Optimized for 88"-106" Harley-Davidson Touring models with slip-on mufflers.
• Bolt-in installation for stock or mildly modified engines.
• Dramatically improves low-end and midrange torque.
• Provides strong performance from idle to 4000 RPM.
• Made in the USA.

Technical specifications

• Brand: S&S Cycle
• Grind: 551 Series
• Type: Chain
• Intake Open: 17°
• Intake Close: 19°
• Intake Duration: 215°
• Intake Lift: 0.550"
• Intake Lift at TDC: 0.178"
• Intake Lobe Centerline: 91°
• Exhaust Open: 41°
• Exhaust Close: 17°
• Exhaust Duration: 237°
• Exhaust Lift: 0.550"
• Exhaust Lift at TDC: 0.170"
• Exhaust Lobe Centerline: 102°

Important to know

This kit is not recommended for compression ratios of 10.0:1 or greater. The installer must check coil bind, valve-to-valve clearance, and valve-to-piston clearance during installation. Not for models with OEM compression releases. Can be used with stock pushrods, lifters, and springs (unless noted).