Mopar Performance cams are designed and engineered exclusively for your engine. A wide range of profiles is available from mild to wild and bracket to all out racing. All Mopar Performance cams are designed, developed, dyno'd and track tested by engineers. These cams are developed for increased power and rpm potential while maintaining reliability and the best possible low-speed characteristics, including torque and idle quality. These Purple Shaft cams offer the best horsepower-to-dollar-spent value. Each cam package contains the cam, tappets and instruction sheet.