BBC Hyd Roller Camshaft NX279HR-13

The BBC Hyd Roller Camshaft NX279HR-13 is engineered for big-block Chevrolet engines demanding serious performance and reliability. This hydraulic roller cam serves enthusiasts and professional builders who require a street-performance profile without sacrificing longevity or daily drivability. Whether you're building a restomod, upgrading a muscle car, or maximizing output from an existing BBC platform, this cam delivers the valve-event timing and lift geometry needed to unlock additional horsepower while maintaining smooth, predictable operation across a wide RPM band.

BBC's roller design eliminates the friction penalty of flat-tappet solid cams, reducing wear on lifters and the block while improving efficiency. The NX279HR-13 utilizes hardened steel construction and precision-ground lobes to ensure consistent valve timing and lift across all eight cylinders. Hydraulic roller technology self-adjusts for clearance variations, eliminating the need for shim adjustments and simplifying installation.

This camshaft is compatible with BBC engines (427, 454, and similar displacements) using stock or upgraded valve train components. Installation requires proper lifter selection, timing cover alignment, and verification of pushrod length to ensure zero lash clearance. The optimized lobe geometry is designed for mid-range torque and top-end power delivery, making it ideal for engines equipped with modern fuel injection or carbureted setups running pump fuel or race blend.