Select type, year, make, and model
The S&S CYCLE 33-5108 Camshaft from the 640 Series is designed specifically for Evolution Big Twin motorcycles manufactured between 1984 and 1999. Engineered to optimize performance for large displacement engines of 110 inches and larger with compression ratios ranging from 10.5:1 to 11.5:1, this camshaft enhances power and efficiency. For smaller engines measuring 96 to 107 inches with compression ratios between 11.0:1 and 12.0:1, it provides a reliable upgrade that supports improved cylinder pressure and overall engine responsiveness. This camshaft features less overlap and faster ramps, which contribute to higher cylinder pressure and better throttle response, making it a preferred choice for performance enthusiasts. Its lower TDC lift simplifies installation, allowing for easier setup and adjustment. Designed for use with hydraulic tappets, the 33-5108 requires high-lift springs to operate correctly and deliver optimal performance. Proper installation requires checking for coil bind, valve-to-valve clearance, valve-to-piston clearance, and cam lobe to case clearance to ensure reliable operation and longevity. Made in the USA, this camshaft combines quality craftsmanship with high-performance engineering, making it a durable upgrade for your Big Twin motorcycle.
Features:
US Dollars
