GM LS LSR Cam - 269LRRHR13

The GM LS LSR Cam - 269LRRHR13 from COMP CAMS is a precision-engineered hydraulic roller camshaft designed for LS-family engine builds demanding aggressive valve lift and duration characteristics. Built for serious enthusiasts and street/strip applications, this cam delivers the aggressive timing events required to maximize horsepower and torque across a wider RPM band than stock profiles. Whether you're building a carbureted LS, EFI conversion, or turbo platform, the 269LRRHR13 specification addresses the needs of builders seeking increased airflow without sacrificing streetable manners.

This hydraulic roller camshaft utilizes modern lobe geometry and COMP CAMS' proven manufacturing tolerance to minimize valve float while delivering consistent lift across the entire RPM spectrum. The hydraulic roller design eliminates the wear patterns associated with solid lifter cams, reducing valvetrain maintenance and allowing use of standard LS cylinder heads without modification. The 269-degree duration and aggressive lobe separation angle optimize scavenging efficiency and cylinder filling, translating to measurable gains on the dyno when paired with appropriate intake manifold, fuel delivery, and ignition tuning. At 9.78 lbs, the cam integrates seamlessly into existing LS engine block assemblies without weight distribution concerns.

This camshaft is ideal for LS1, LS2, LS3, LS7, and truck-based LS platform engines undergoing performance upgrades. Installation requires proper pushrod length calculation and valve lash adjustment during the break-in process—a critical step many overlooked during cam swaps. The 269LRRHR13 works best in combination with quality roller rocker arms, quality valvesprings rated for the lift and RPM target, and proper fuel mapping in EFI applications. Ensure your supporting modifications—intake, exhaust, and computer tuning—match the cam's intended power band for optimal results and longevity.