Main Girdles

Probe Industries Main Web Girdles are manufactured to assist in strengthening the main webs of Ford passenger car engine blocks in high horsepower applications. All Probe Industries Main Girdles are manufactured from steel, Billet Steel for the "Track Dominator" and flame cut cold rolled steel for the "Street Fighter". In our experience using a Probe Industries Main Girdle greatly decreases, or eliminates, flex in both the main webs and the main caps. This reduces the requirement of replacing the main caps in all but the most violent applications.