COMP Cams Phaser Kit Computer-Controlled Camshaft Timing Adjuster

COMP Cams Phaser Kit — Computer-Controlled Camshaft Timing Adjuster Optimize performance and preserve VVT benefits. The COMP Cams Phaser Kit is a patented limiter for 2007+ GM Gen IV VVT engines that reduces cam phaser movement to 20°—providing the clearance needed for aggressive performance camshafts while retaining variable valve timing advantages. Key Benefits Safe cam timing range: Limits phaser travel from the factory 60° to a controlled 20° to prevent piston-to-valve contact with aggressive cams. Maximize upper-rpm power: Enables tighter lobe separations and more aggressive profiles for significant high-rpm gains. Maintain drivability: Keeps bottom-end and mid-range torque and fuel-efficiency benefits of VVT. Direct fit for GM Gen IV VVT: Designed specifically for 2007 and later GM engines with computer-controlled cam phasers. How It Works Factory cam phasers use engine oil and electronic solenoids to vary cam timing up to 60° based on rpm and load. The COMP Cams Phaser Kit mechanically restricts that range to 20°, delivering reliable valve clearance for performance cams while allowing the ECU-controlled system to continue optimizing timing within the safer window. Why Choose COMP Cams Trusted engineering and a U.S. patent ensure precise, durable operation. The Phaser Kit is a simple, high-impact valvetrain modification that unlocks greater top-end power without sacrificing daily drivability or VVT functionality.