Stud Girdle Adj. Nuts 7/16in 4-Pack

The Moroso Stud Girdle Adjustable Nuts 7/16in 4-Pack (part number 67320) are precision-engineered rocker arm fasteners designed for small-block and big-block Chevy V8 engine builds. These slotted-head studs feature a 7/16-20 thread specification and are manufactured from steel for reliable clamping force and repeatability across multiple engine cycles. Each set includes four nuts, making this the ideal choice for builders who need OEM-specification fastening hardware or direct replacement components.

The 7/16-20 thread pattern is the factory standard for Chevy V8 rocker arm girdle applications, ensuring proper fit with original equipment studs and aftermarket girdle systems that follow GM specifications. Steel construction provides the hardness and fatigue resistance necessary for high-RPM engine operation, while the slotted head design allows controlled torque application using a standard blade wrench. The set of four covers a complete four-stud girdle configuration, simplifying single-order procurement for engine assembly or service work.

This fastener set is essential for engine builders, machine shops, and enthusiasts performing Chevy V8 rocker arm assembly, girdle installation, or complete top-end rebuilds. Proper rocker arm girdle fastening maintains valve train alignment and prevents oil weeping at the gasket interface. The Moroso 7/16-20 stud girdle nuts are a direct replacement for worn or lost fasteners and meet the torque and clamping specifications required by both stock and modified engine configurations.