Adapter Fitting #8 x 5/8-20 Carter AFB

The FRAGOLA Adapter Fitting #8 x 5/8-20 Carter AFB is a straight carburetor inlet adapter engineered for fuel system plumbing on vehicles equipped with Carter AFB carburetors. This fitting bridges 8 AN male fittings to 5/8-20 male threads, a common connection point on fuel inlet manifolds and carburetor bodies. Constructed from aluminum and finished in blue anodize, the fitting provides reliable performance in high-vibration engine bay environments where corrosion resistance and material durability matter.

At 2 inches in length, this adapter offers the compact profile necessary for tight underhood packaging without requiring excessive hose routing or adapter stacking. The 8 AN thread size (approximately 1/2-inch nominal) handles fuel delivery demands typical of carbureted V8 and larger displacement engines. The 5/8-20 male thread matches the standard Carter AFB inlet port, eliminating the need for intermediate fittings. Blue anodized aluminum resists oxidation in fuel-wetted applications and maintains dimensional stability across normal operating temperature ranges.

Buyers restoring classic vehicles with Carter carburetors, performing fuel system upgrades on vintage muscle cars, or installing performance fuel pumps rely on proper inlet adapters to prevent fuel leaks and ensure correct flow paths. This fitting is suited for street rods, muscle car restorations, classic truck builds, and any application where OEM Carter AFB carburetor plumbing requires modernization with -8 AN fuel line systems. Proper thread sealing with automotive thread sealant (PTFE tape or equivalent) is essential during installation.