COMP CAMS K31-491-9 COMP Cams K31-491-9 Xtreme Energy Small Block Ford Hydraulic Roller Camshaft Kit

The COMP Cams K31-491-9 Xtreme Energy K-Kit is a complete valvetrain upgrade designed for small-block Ford applications. This hydraulic roller kit combines a matched camshaft, lifters, valve springs, and timing set to provide a coordinated performance package for street and performance builds. The camshaft profile is engineered for strong throttle response, improved mid-range power, and dependable operation across a practical engine speed range.
The camshaft features 0.480-inch lift at both the intake and exhaust valves, with 258/266 degrees of advertised duration and a 110-degree lobe separation angle. Its 206/212 profile supports a responsive driving character while maintaining useful street manners. The recommended operating range is approximately 1,200 to 4,800 rpm, making this kit suitable for naturally aspirated small-block Ford engines that need improved performance without sacrificing everyday usability.
As a complete COMP Cams K-Kit, part number K31-491-9, this package helps simplify component selection and installation by pairing the camshaft with compatible hydraulic roller lifters, valve springs, and a timing set. The matched components are intended to work together for reliable valve control and consistent camshaft timing. Whether used for a performance-oriented street vehicle, weekend cruiser, or mild engine build, the Xtreme Energy kit offers a practical solution for upgrading the small-block Ford valvetrain with proven COMP Cams engineering.

Features:

• Complete COMP Cams Xtreme Energy K-Kit with camshaft, hydraulic roller lifters, valve springs, and timing set

• Designed for small-block Ford engines

• Hydraulic roller camshaft profile with 0.480-inch intake and exhaust lift

• 258/266 degrees of advertised duration with a 110-degree lobe separation angle

• 206/212 performance profile for responsive street and mid-range operation

• Recommended operating range of approximately 1,200 to 4,800 rpm

• Matched components support reliable valve control and consistent timing