This cam was designed for the big engine performance enthusiasts who require a wide, usable power curve and strong top end charge with excellent valve control. Good valve train dynamics for long life while providing power for severe duty use. Compliments high flow heads, intake and exhaust.
In compliance with ARB emissions laws, this product is not sold or shipped to California.
Red Shift Cams® Performance Cams for 1999-2006 Twin Cam® Engines
This venerable cam is designed for big engine performance enthusiasts who require a wide, usable power curve and strong top end charge while maintaining excellent valve control.
The RS647 offers good valve train dynamics while providing power for severe duty applications. Use this cam only with modified engines with high compression, high flow heads, intake and exhaust systems.
The RS647 are only recommended for LARGE DISPLACMENT engines. Pump gas applications compression range is a minimum of 10.5- additional compression, closer to 10.8 to 11:1 is ideal FOR PUMP GAS applications;
Lower TDC lifts helps engine builders fit this cam in heads with tight valve to valve parameters.
Additional lift can be realized with higher rocker ratios.
DOCUMENTS & DOWNLOADS
This product is not for sale or use on pollution controlled vehicles.