S/S Carburetor Stud Kit 5/16in x 2.225in OAL

The ARP S/S Carburetor Stud Kit 5/16in x 2.225in OAL (model 400-2414) is engineered for serious engine builders and restoration enthusiasts who demand reliable fastening in high-vibration carbureted applications. Carburetor mounting studs are critical hardware—they must withstand engine block vibration, thermal cycling, and the constant micro-movements that loosen inferior fasteners. This four-piece stud set addresses the most common failure point in carbureted engines: inadequate or corroded studs that allow carburetors to shift, causing vacuum leaks and lean-running conditions that destroy driveability and fuel economy.

Constructed from 300-series stainless steel with a polished finish, these studs resist corrosion and galling—a major problem when swapping carburetors or performing intake work repeatedly. The 5/16-inch diameter accommodates both 5/16-18 and 5/16-24 thread pitches, making this kit versatile across classic Chevy, Ford, Mopar, and Pontiac platforms. Each stud measures 2.225 inches overall length and arrives with matching hex nuts, eliminating the need to source mismatched hardware. Stainless construction prevents the thread-lock issues common with mild steel studs that corrode to the block, especially in humid climates or when engines sit between seasons.

Carburetor enthusiasts, street rod builders, and classic car restorers benefit most from upgrading to ARP's premium studs during intake manifold or carburetor replacement. Installation is straightforward: remove factory studs and thread these in with medium-strength threadlocker to prevent vibration-induced loosening. The polished stainless finish won't rust through, delivering reliable hold-down tension season after season without seizing or requiring penetrating oil for future service. This is essential maintenance for any carbureted engine running regularly or stored long-term.