COMP Cams Stud Girdles 4027 COMP Cams offers the finest stud girdles on the market today. Our Ultra-Gold Stud Girdles are made of 6061-T6 aluminum for light weight and anodized for durability. They are a one-piece, solid bar design to tie the studs together as well as properly locate them. Stud Girdle Kit, CS 3/8 Gold COMP Cams Ultra-Gold Stud Girdle, Spring Loaded Design, 3/8" Stud Diameter for Small Block Chevrolet COMP Cams Stud Girdle Kit CS 3/8 Golds