The COMP Cams stud-girdle adjusting nut fits Big Block Chevrolet intake valves and uses a longer 2.515" overall length for deeper engagement. It adapts stud girdles to provide secure adjustment where additional thread length is required. This intake-thread nut is intended for applications requiring the extended overall length and a clean fit with Big Block Chevy stud girdles.
COMP Cams Stud Girdle Adj Nuts 7/16 CB