Regardless of displacement or compression ratio with a stock starter, Easy Start Cams from S&S® Cycle make hard starting obsolete for big twins. Available in chain drive and gear drive versions. Don't get caught "dead" without them! More Proven Performance® from S&S Cycle, Inc., the leader in V-Twin high performance parts since 1958.
The 640 cams are designed as a great way to increase performance at an affordable price with quick installation
Kit includes:
Open | Close | Lift | Duration | TDC Lift | |
INT | 19.5 | 43.5 | .635 | 243 | .186 |
EX | 58.5 | 37.5 | .635 | 276 | .284 |
For technical camshaft information along with detailed product support, please visit our Performance Cams page.