S&S Cycle 640CE Easy Start Chain Drive Camshaft Kit - Harley Dyna & Big Twin

Inject a significant horsepower boost into your Harley-Davidson Dyna or Big Twin engine with the S&S Cycle 640CE Easy Start Chain Drive Camshaft Kit. Engineered for performance, this kit also features the Easy Start design, ensuring your stock starter can reliably crank even high-performance builds.

Why riders pick this

• Chain drive design for straightforward upgrade
• Easy Start allows use of stock starter
• Increases horsepower, especially in S&S T124 engines
• Complete kit with gaskets, bearings, and instructions
• Reuses many stock parts for an economical solution

The 640CE camshaft kit is designed for riders who demand more power while maintaining the convenience of their factory starter. Its chain drive system offers a robust and economical upgrade path, reusing many stock components. This kit is a complete solution, including the essential gaskets and bearings needed for a smooth installation.

Enhanced Horsepower and Easy Starting

• Chain drive design for a reliable and economical upgrade
• Easy Start feature works with your stock starter motor
• Engineered to increase horsepower, especially in S&S T124 engines
• Complete kit includes cams, gearcover gasket, and cam bearings

Smart Performance Upgrade

This camshaft kit is ideal for 2006 Harley-Davidson Dyna and 2007–2016 Big Twin models looking for a significant performance increase. The Easy Start design is a game-changer, eliminating the need for costly starter upgrades often associated with higher-lift cams. Always confirm your motorcycle's year and model to ensure proper fitment.

Specifications

• Brand: S&S Cycle
• Manufacturer Part #: 106-5235
• Weight: 3.75 lb
• Category: Engine Components / Camshafts

Common questions