Mr. Gasket Carburetor Mounting Gasket

Mr. Gasket Carburetor Mounting Gaskets: Race-Proven Sealing for Every Build

When it comes to sealing the interface between a carburetor and intake manifold, few names carry more credibility than Mr. Gasket. Founded in 1964 by drag racer Joe Hrudka, the brand was born on the track — where an air or fuel leak at the carburetor base isn't just a performance problem, it's a race-ending one. That racing DNA is baked into every carburetor mounting gasket the brand produces, making them a trusted choice for street builds and competition engines alike.

Material Engineering That Matters

Mr. Gasket's carburetor mounting gaskets are manufactured from a cellulose/nitrile/rubber composite — a synthetic blend chosen specifically for its high-tensile strength and resistance to the chemicals and temperatures found in a running engine. This material delivers excellent sealing performance against fuel, oil, and coolant, standing up to the repeated heat cycles and vibration that can cause lesser gaskets to crack, shrink, or blow out over time. Many gaskets in the lineup are die-cut for a precise fit, ensuring clean mating surfaces and minimal installation headaches.

A Fitment for Every Carburetor Configuration

One of the strongest attributes of Mr. Gasket's carburetor mounting gasket lineup is its breadth of coverage. Whether you're working with a classic 2-barrel setup, a square-bore 4-barrel, a Holley Dominator 4500, or a Rochester Quadrajet, there's a purpose-built gasket in the catalog. Thicknesses vary by application — options include both thinner .060"–.063" profiles for standard mounting and thicker .250" variants where additional height or insulation is needed between the carb and manifold. Available configurations include open-center and 4-hole designs, with compatibility spanning popular carburetors from Holley, Carter AFB and AVS, Edelbrock Performer, Demon, and Quadrajet-style units.

• 2-Barrel gaskets for Holley and other common 2-barrel flanges
• 4-Barrel square bore gaskets compatible with Holley 4150/4160, Edelbrock, Carter AFB/AVS, and Demon carburetors
• 4500 Dominator gaskets for large-displacement, high-flow racing applications
• Quadrajet-specific gaskets for GM spreadbore 4-barrel installations
• Multiple thickness options (.060", .063", .250") to match your specific application requirements

Why Choose Mr. Gasket for Carburetor Sealing?

A leaking carburetor base gasket can cause vacuum leaks, erratic idle, lean air/fuel mixtures, and even fire hazards — none of which belong in a properly tuned engine. Mr. Gasket's composite construction addresses these risks head-on with a material engineered to resist fuel permeation and maintain a positive seal under sustained heat. As part of the Holley Performance family of brands, Mr. Gasket continues to expand its application coverage for both classic muscle cars and purpose-built race vehicles, making it easy to source the right gasket regardless of your combination. With over 20 SKUs in this category alone, there's a strong chance the exact fitment you need is already in the lineup.