The RS511 is the most powerful bolt in cam for 1999-2004 Twin Cam® 88 or 95″ engines, specifically designed for heads with stock valve springs. Unique profile makes exceptional power and torque while maintaining excellent valve train dynamics for quiet operation.

These cams are designed for use with the factory dual-coil valve springs used in 1999-2004 engines; or with for 2005-2006 engines with factory beehive valve springs

Intake open 25, c/l 94, close 33 Duration 238 TDC .207″ Lift .510″
Exhaust open 37, c/l 98, close 21 Duration 238 TDC .185″ Lift .510″

  • Use stock or Adjustable pushrods
  • Available in chain & gear drive for Early model engines only
  • Consider hydraulic tensioners with Red Shift Cams® Dual Piston Cam Chain Tensioners (#413-901) for improved cam chest component reliability, maximum throttle response, and reduced valve train noise.
  • New cam bearings and performance tappets recommended with any cam change.


Red Shift® Cams Catalog
Red Shift® Twin Cam® Cams Fitment Matrix
Red Shift® Cam Twin Cam® Installation Guide
Rogue’s Red Shift® Cam Install Article – Bikernet

Not legal for sale or use in California on any pollution controlled motor vehicle.
Not legal for sale or use on any EPA pollution controlled motor vehicle.

Weight 1 lbs

Country of Origin

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