P/C #6 to 7/8-20 Holley Carb Ftgs (2pk)

The P/C #6 to 7/8-20 Holley Carb Ftgs (2pk) represents a critical upgrade for serious carburetor builders and performance engine tuners working with classic fuel systems. These fittings serve as adapter components that bridge incompatible fuel line connections, allowing seamless integration between Power Commander #6 fuel pressure systems and Holley carburetors featuring 7/8-20 threaded ports. Whether you're restoring a vintage muscle car, tuning a street performance build, or fabricating a custom fuel delivery system, having the correct fitting specifications eliminates costly leaks, fuel starvation, and mismatched plumbing that compromises engine reliability.

These fittings are engineered from quality brass or stainless steel construction, designed to withstand fuel system pressures while maintaining thread integrity under temperature cycling and vibration. The 7/8-20 thread specification is the industry standard for Holley four-barrel carburetors, ensuring a secure, leak-free seal when properly installed with compatible fuel hose and ferrules. The two-pack configuration provides redundancy for dual-carb setups or replacement components, reducing downtime during complex fuel system modifications. Russell fittings maintain precise dimensional tolerances that prevent cross-threading and ensure compatibility across generations of Holley carburetors, from classic 4160 models to modern performance variants.

Mechanics and engine builders frequently specify these adapters when upgrading factory fuel systems to aftermarket carburetors or when retrofitting Power Commander fuel pressure regulation into existing Holley platforms. Installation requires only basic hand tools and familiarity with fuel system thread pitch; tightening should follow carburetor manufacturer specifications to avoid damaging brass ports. These fittings are essential for anyone integrating modern fuel management with classic carburetor technology, making them an economical solution for avoiding expensive custom fabrication or port modification.