SBC Pro Crank Nut Assm. - Two-In-One

The SBC Pro Crank Nut Assembly - Two-In-One by COMP CAMS is an essential fastening solution designed for small-block Chevrolet engine builders and enthusiasts who demand reliability under extreme conditions. This dual-function component serves as both a standard crank nut and a specialized retention device, eliminating the need to carry multiple fasteners during engine assembly or rebuild work. Whether you're freshening a vintage small-block or building a high-performance street or race engine, this assembly provides the secure, repeatable clamping force necessary to keep your crankshaft properly secured throughout the entire operating range.

COMP CAMS engineered this two-in-one design to reduce assembly complexity while maintaining the precision fit required for SBC applications. The assembly combines premium fastening geometry with professional-grade construction, ensuring consistent torque retention and eliminating vibration-induced loosening that can occur with inferior hardware. The compact form factor—measuring 3.25 by 2.25 by 4.25 inches with a practical 0.6-pound weight—makes it easy to handle during tight engine compartment work, while the dual-function design streamlines your toolbox and parts inventory for faster, more efficient builds.

Professional engine builders, performance shops, and serious DIY mechanics benefit most from this assembly's versatility and reliability across stock restoration, mild street builds, and aggressive race applications. Installation is straightforward for anyone with basic small-block Chevrolet experience—simply follow your engine manual's torque specifications and assembly sequence. This component is specifically engineered for small-block Chevrolet engines, making it the ideal choice for anyone restoring or modifying these legendary powerplants and seeking OEM-grade quality with added functional convenience.