LS1/LS6 Xtreme RPM High Hyd. Roller Cam XR265HR

The LS1/LS6 Xtreme RPM High Hydraulic Roller Cam XR265HR from COMP CAMS is purpose-built for LS-platform engine builders targeting aggressive street and strip performance. This hydraulic roller cam is engineered for enthusiasts who demand increased valve lift and duration without sacrificing reliability or requiring extensive engine modifications. Whether you're upgrading a stock LS1 or maximizing an LS6's potential, this camshaft delivers the aggression needed for serious horsepower and torque gains across mid-to-high RPM ranges.

Hydraulic roller cam technology eliminates the complexity and wear associated with mechanical roller designs while maintaining the efficiency and durability benefits of roller lifters. The XR265HR profile features optimized lobe geometry that maximizes valve opening events, improving cylinder breathing and combustion efficiency. COMP CAMS' precision manufacturing ensures consistent lobe profiles across all cylinders, reducing wear on valve trains and extending component life. The high-lift design integrates seamlessly with OEM or performance cylinder head packages, making it an ideal upgrade for bolt-on performance without requiring deep internal engine work or exotic valvetrain components.

This cam excels in LS1 and LS6 powered vehicles where builders prioritize reliability alongside performance—from street cruisers to weekend racers. Installation requires a basic engine tear-down with proper valve clearance adjustment and timing verification; experienced mechanics can install in a single session. Compatibility extends across LS1 (1997–2004 Corvette, Camaro) and LS6 (2002–2007 Corvette, GTO) applications, with proper verification of your specific cylinder head configuration and intake manifold clearance recommended. Pair with quality roller lifters, a performance fuel tune, and upgraded ignition for maximum effectiveness.