Holley 4500 Dominator Po rted Gasket

The Holley 4500 Dominator Ported Gasket (R2035) is a precision carburetor base plate gasket engineered for serious performance enthusiasts and engine builders who demand reliability in fuel system architecture. This composite gasket pair is specifically designed for four-barrel Dominator flange carburetors, providing the critical seal between the carburetor body and intake manifold that prevents fuel and air leakage. Whether you're building a street engine, competition platform, or restoring a high-performance classic, this gasket ensures optimal fuel metering and combustion efficiency by maintaining the precise fuel delivery calibration your Holley 4500 Dominator carburetor requires.

Manufactured from composite material with a thickness of 0.063 inches, this gasket is engineered to withstand thermal cycling and fuel exposure while maintaining a dependable seal under load. The ported design optimizes fuel distribution across all four barrels, while the four-hole configuration ensures proper alignment with Dominator flange mounting points. Composite gasket construction offers superior resistance to fuel degradation compared to cork alternatives, extending service life and reducing the risk of mid-race failures. The pair configuration allows replacement or repair without purchasing unnecessary duplicates, and the lightweight design at 0.22 lbs adds negligible mass to your fuel system.

This gasket is essential for anyone installing, rebuilding, or servicing a Holley 4500 Dominator carburetor on small-block or big-block platforms. Installation requires careful alignment of the gasket with the four mounting holes before torquing to manufacturer specifications—proper installation pressure ensures the seal without over-compression that could compromise fuel atomization. Keep a spare pair on hand for competition events, as carburetor gasket failure is a common cause of fuel delivery issues that sideline engines during critical moments. Compatibility with Dominator flange carburetors makes this a must-have maintenance item for serious carbureted engine builders.