Stud Girdle Kit Pontiac V8 326-455 59-79

The PRW Industries Stud Girdle Kit for Pontiac V8 engines 326–455 (1959–1979) is a solid aluminum rocker arm girdle designed to reinforce and stabilize the rocker arm assembly in high-performance and restored Pontiac applications. This 7/16-20 inch threaded stud configuration provides secure fastening and reduces rocker arm deflection during aggressive engine operation, a critical consideration for street and competition engines where valve train integrity directly impacts reliability and combustion efficiency.

Manufactured from aluminum and finished in blue anodize, the girdle resists corrosion while maintaining a lightweight profile appropriate for engine bay temperatures. The solid bar design is stiffer than split designs, minimizing flex under load and improving valve actuation precision. The 7/16-20 thread studs are the factory specification for Pontiac V8 rocker assemblies across this engine family, ensuring compatibility without modification. Anodized finishes provide both aesthetic appeal and functional corrosion resistance, important for long-term durability in storage, restoration, or active service.

This kit serves Pontiac V8 engine builders, classic car restorers, and enthusiasts working on 326, 389, 400, 428, and 455 cubic inch displacement engines. Restorations and performance rebuilds depend on factory-correct components; this girdle ensures the rocker arm assembly meets original specifications while delivering the rigidity modern high-RPM operation demands. Installation requires standard hand tools and fits within the factory mounting points on compatible Pontiac V8 short blocks.