500 Cfm Hly 2-Bbl Gskt

The Mr. Gasket 500 CFM Holley 2-Barrel Gasket (Part No. 49) is a composite carburetor base plate gasket engineered for 2-barrel Holley carburetors in the 500 CFM flow range. This replacement gasket maintains critical sealing integrity between the carburetor body and intake manifold, preventing fuel and air leakage that compromises both performance and reliability under load.

Specified at 0.063 inches thick with an open design, this composite gasket material resists fuel degradation and temperature cycling common in high-performance and street applications. The precision-cut profile ensures exact alignment with Holley 2-barrel carburetor mounting surfaces, eliminating fuel seepage that can foul spark plugs, contaminate oil, and reduce throttle response. Mr. Gasket's manufacturing tolerances guarantee fitment without modification.

This gasket is the go-to replacement for engine builders, restorers, and enthusiasts performing carburetor maintenance or rebuilds on classic muscle cars, hot rods, and street machines. Whether you're diagnosing fuel smell under the hood, replacing a failed gasket after years of service, or doing a complete carburetor overhaul, this Mr. Gasket component delivers OEM-quality sealing at a fraction of OEM pricing. Sold as a single gasket—stock spares for tuning season or mid-season repairs.