SBC XFI Hyd Roller Cam XFI 242/248

The COMP CAMS SBC XFI Hydraulic Roller Camshaft (part 12-468-8) is a purpose-built extreme fuel injection cam engineered for small-block Chevy engines running aggressive XFI fuel systems. This hydraulic roller cam delivers 0.584-inch intake lift and 0.579-inch exhaust lift across a 292/300-degree duration profile, optimized for the 2200–6200 RPM power band where modern fuel injection systems perform their best.

The 113-degree lobe separation angle (LSA) is a critical specification for street and strip applications using electronic fuel management. This lobe angle provides the overlap and scavenging characteristics required to keep combustion stable across varying load conditions while the fuel injectors continuously adjust air-fuel ratio. The hydraulic roller design minimizes parasitic drag compared to solid lifters, preserving engine efficiency while the roller contact surface reduces wear on both the cam lobe and lifter. The specified RPM range reflects realistic application limits where valve float and mechanical stress remain within acceptable bounds for durable operation.

This cam is suited for small-block Chevy engine builders focused on fuel-injected performance—whether street cars requiring refined idle and cruise characteristics, bracket-racing vehicles demanding consistent power delivery, or engine swaps where OEM carbureted cams do not integrate with modern fuel systems. The XFI profile allows tuning software to compensate for cam timing variables, making it a practical choice for engines where fine control of combustion events improves both performance and reliability.

COMP CAMS camshafts for small-block Chevy applications are manufactured to tight tolerances and have become standard in both OEM restoration and custom build shops. The hydraulic roller design has proven reliable across tens of thousands of hours of real-world engine operation, from weekend cruisers to serious competition vehicles.