Universal Alum Valve Cover Bung

The Universal Alum Valve Cover Bung from Racing Power Co-Packaged is an essential component for engine builders, performance enthusiasts, and mechanics who need reliable breather or accessory port sealing on custom valve covers. Whether you're building a show engine, installing forced induction, or routing PCV lines on a modified platform, this aluminum bung kit provides a professional, leak-free solution for 1.500-inch OD openings on aluminum valve covers. Its universal design makes it compatible across multiple engine families and custom fabrication projects.

Constructed from lightweight aluminum with a polished finish, the Universal Alum Valve Cover Bung features both bolt-on and weld-on mounting options, giving fabricators flexibility in installation approach. The kit includes a threaded aluminum cap that seals securely, preventing oil mist escape and contamination of intake tract components—critical for maintaining clean air flow in turbocharged or supercharged applications. The 1.500-inch OD specification fits standard bung openings commonly found on performance valve covers, while the polished aluminum construction resists corrosion and complements custom engine bay aesthetics without added weight.

This bung kit is ideal for custom engine builds, race car fabrication, and street performance applications where factory valve covers are replaced with aftermarket aluminum units. Installation is straightforward: bolt or weld the bung base into your valve cover's 1.500-inch opening, then thread the aluminum cap in place to seal. Its compact footprint (3.85 x 1.1 x 5.95 inches) and minimal weight (0.18 lbs) make it suitable for weight-conscious builds without compromising durability or seal integrity. Whether managing crankcase ventilation, boost reference lines, or gauge ports, this universal bung delivers reliable, professional-grade sealing for serious automotive projects.