GM LS XFI Cam - 267PHR14

The GM LS XFI Cam - 267PHR14 by COMP CAMS is a direct bolt-in camshaft upgrade engineered specifically for Gen III and Gen IV LS-platform engines equipped with LS9 or LSA supercharger packages. This camshaft is designed for builders and enthusiasts who demand maximum airflow efficiency and precise valve timing in forced-induction applications. Whether you're building a high-horsepower street machine, track car, or dedicated drag racing platform, this cam addresses the critical need for optimized breathing characteristics that stock LS cams simply cannot deliver.

COMP CAMS engineered the 267PHR14 with a duration and lift profile that maximizes scavenging efficiency while maintaining stable idle quality and drivability in supercharged LS engines. The cam features precision-ground lobes manufactured from high-quality steel, designed to work seamlessly with factory LS valve train components and hydraulic roller lifters. The XFI designation indicates this cam is optimized for electronically fuel-injected LS engines, allowing engine control modules to adapt fuel and ignition timing to the cam's characteristics without requiring custom tuning or ECU recalibration in many applications.

This camshaft delivers measurable gains in peak horsepower and torque across the RPM band when paired with supporting modifications—particularly intake manifolds, cylinder head work, and proper fuel system calibration. Installation is straightforward for experienced engine builders and professional shops familiar with LS engine assembly; standard timing chain and sprocket components are compatible. The GM LS XFI Cam - 267PHR14 is ideal for owners upgrading supercharged LS engines seeking a performance-grade valve timing solution that retains modern fuel injection reliability while extracting every available horsepower from forced-induction displacement.