S&S Cycle Camshaft 561 for Evolution Big Twin - Part 33-5076

The S&S Cycle Camshaft 561 (Part 33-5076) is a high-performance component designed specifically for 80"-96" Evolution Big Twin engines. Crafted with precision and tested extensively on the dyno, street, and track, this camshaft ensures optimal performance and reliability. It is suited for engines with a compression ratio ranging from 9.5:1 to 10.5:1, making it ideal for riders seeking enhanced midrange power. The camshaft delivers robust power in the 3000-5500 rpm range, providing a significant upgrade over stock components for improved acceleration and throttle response. Built in the USA, this camshaft incorporates features that support high-lift springs and requires spring spacing adjustments for proper installation. It is compatible with hydraulic tappets, simplifying the upgrade process while maintaining smooth operation. Proper installation requires the installer to check for coil bind, valve-to-valve clearance, valve-to-piston clearance, and cam lobe to case clearance to ensure optimal performance and engine longevity. This product is engineered for enthusiasts who demand durability, performance, and quality from a trusted American manufacturer.

Features:

• Tested extensively on the dyno, street, and track for optimal performance

• Designed for 80"-96" Evolution Big Twin engines

• Provides strong midrange power between 3000-5500 rpm

• Compatible with hydraulic tappets for easier installation

• Requires high-lift springs and spring spacing adjustments

• Made in the USA for quality assurance

• Engineered to support high-lift springs and performance upgrades

• Requires checking coil bind, valve-to-valve, valve-to-piston, and cam lobe to case clearances during installation