It looks like we don't have any community posts for this product right now — Got relevant content to contribute?

About S&S Cycle 640G Gear Drive Camshaft Kit

S&S Cycle 640G Gear Drive Camshaft Kit

  • Designed for engines of 95in. or more with compression ratios between 10. 5:1 and 11. 5:1 used in S&S 124in. engines.
  • Strongest from 3,000-6,000 rpm
  • High-lift springs required
  • Intake Opening (degrees): 25
  • Intake Closing (degrees): 60
  • Exhaust Opening (degrees): 65
  • Exhaust Closing (degrees): 25
  • Intake Duration (degrees): 265
  • Exhaust Duration (degrees): 270
  • Valve Lift (in):. 640
  • Intake Centerline (degrees): 107. 5
  • Exhaust Centerline (degrees): 110
  • Intake Lift at TDC (in):. 228
  • Exhaust Lift at TDC (in):. 214.

Warning:  California Proposition 65

Get Real Into It.

Sign up for the latest scoop on the products that matter in the motorcycle community.

PureMoto Network

Top brands and retailers together helping you locate and buy motorcycle products.

Search Nearby Retailers

See what is in stock at your local retailer. Put it on hold for pickup today.

Have it Delivered

We find it in stock and deliver to you from the nearest source.

PureMoto Influencers

As seen on Youtube Dirt N' Iron and Bike Builds with Aaron Colton.