S&S Cycle 583 Easy Start Camshaft Kit - 106-5811

Upgrade your Harley-Davidson Big Twin with the S&S Cycle 583 Easy Start Camshaft Kit for enhanced performance and effortless starting. This camshaft kit is engineered to deliver a significant boost in low-end torque and horsepower, making it ideal for Softail and Dyna models.

Description

The S&S Cycle 583 Easy Start Camshaft Kit is designed to provide optimal performance across a broad RPM range, specifically between 1500 and 5000 RPM. The Easy Start feature works by momentarily reducing crank compression during startup. Once the engine is running and RPM increases, the compression release lobe retracts centrifugally, restoring full compression for normal operation without any compromise in performance. This kit is a bolt-in solution optimized for Softail and Dyna models, but can be used in any Big Twin, offering an excellent overall camshaft upgrade. Experience improved throttle response and a more powerful riding experience with this premium camshaft kit.

Features & highlights

• Easy Start design reduces cranking compression for effortless starts.
• Delivers strong low-end torque and horsepower gains.
• Optimized for 1500-5000 RPM range in Softail and Dyna models.
• Bolt-in installation for straightforward upgrade.
• Maintains full compression and performance after startup.
• Suitable for use in any Big Twin motorcycle.
• Made in the USA.

Technical specifications

• Brand: S&S Cycle
• Product Name: Camshaft Kit
• Type: Gear
• Grind: 583 Series
• Intake Open: 5°
• Intake Close: 18°
• Intake Duration: 204°
• Intake Lift: 0.583"
• Intake Lift at TDC: 0.113"
• Intake Lobe Centerline: 96.5°
• Exhaust Open: 58°
• Exhaust Close: 24°
• Exhaust Duration: 262°
• Exhaust Lift: 0.583"
• Exhaust Lift at TDC: 0.206"
• Exhaust Lobe Centerline: 107°

Important to know

This kit includes camshafts, gear cover gasket, bearings, retaining ring, O-ring, thread lock, and instructions. Installer must check coil bind, valve-to-valve clearance, and valve-to-piston clearance. Not for models with OEM compression releases. Not recommended for compression ratios of 10.0:1 or greater.