Firewall Junction 3 Hole

The Firewall Junction 3 Hole by QUICKCAR RACING PRODUCTS is a precision engineered aluminum manifold block designed for high-performance automotive fuel system and pneumatic applications. This component serves as a central junction point for vehicles undergoing serious engine bay modifications, custom fuel line routing, or turbo/supercharger installations where multiple feed and return lines converge at the firewall. Built for serious racers, street rodders, and engine swap enthusiasts, the Firewall Junction consolidates connection points and reduces clutter in tight engine compartments.

Manufactured from black anodized aluminum, this junction block features three 1/8 inch NPT (National Pipe Thread) ports that allow standardized threaded adapters, banjo fittings, or quick-disconnects to be installed with confidence and repeatability. The anodized finish resists corrosion in harsh underhood conditions while maintaining a clean appearance in show-quality engine bays. With a compact footprint measuring 4 x 0.85 x 7.05 inches and weighing just 0.24 lbs, the Firewall Junction mounts directly to the firewall without adding significant weight or bulk—critical for race vehicles where every ounce matters and packaging efficiency drives installation decisions.

This product benefits fuel system builders, engine tuners, and fabricators who demand reliable, OEM-quality components for custom fuel delivery, vacuum distribution, and pneumatic control systems. Whether you're converting a carbureted engine to EFI, integrating a second fuel pump for a turbo upgrade, or consolidating vacuum lines for a full engine management system overhaul, the three-port design provides flexibility without requiring custom welding or drilling. Its NPT threading ensures compatibility with industry-standard adapter kits and aftermarket fuel system components, making it an essential building block for modular, professional-grade engine modifications.