S&S Cycle 2006 BT Dyna 640C Chain Drive Camshaft Kit

If you're looking to get more performance out of your Harley-Davidson Big Twin, this S&S Cycle 640C Chain Drive Camshaft Kit is a solid option. It's designed to increase power, especially in engines 95 cubic inches and larger, and works well with compression ratios between 10.5:1 and 11.5:1, making it a good match for S&S 124-inch engines. This kit is built for a range of Harley-Davidson models, including popular bikes like the Dyna Super Glide, Road King, and Street Glide.

This camshaft kit includes the cams themselves, along with gear cover gaskets and cam bearings, so you have the essential pieces to get the job done. The 640C cam offers a significant valve lift of 0.640 inches on both intake and exhaust, with a duration at 0.053 of 265 degrees for the intake and 270 degrees for the exhaust. These specs indicate a cam designed for improved airflow and power output, especially in the mid to upper RPM range.

When installing this kit, it's important to follow the included instructions carefully. Because this is a performance part, it's always a good idea to ensure your engine's supporting systems, like fuel delivery and exhaust, are also set up to take advantage of the improved airflow. This kit is a well-built component from S&S Cycle, known for their performance engine parts.