106-4849 S&S Cycle 640 Gear Drive Easy Start Cams with Inner Gears
640GE Easy Start® Camshaft Set With Inner Gears for '06 HD® Dyna® and 2007-'16 Big Twins
S&S .640 inch lift cam is used in S&S T124 engines, this cam is designed to make horsepower. Intended for engines of 95 CID or more with compression ratios between 10.5:1 and 11.5:1. 3000 - 6000 rpm.
Includes 640GE Gear Drive Easy Start camshaft set with inner gears for 1999-2006 Harley-Davidson® big twin models and '06 HD® Dyna®.
Features and benefits include:
Improves valve timing accuracy by eliminating timing chain lash
Easy Start Cams allow stock starter to start any engine
No tensioner shoes to wear out or fail
Note: Special valve springs will be needed.