Cometic C5280 Holley 4-Barrel Carburetor Base Gasket - 390 CFM

The Cometic C5280 is a precision-cut fiber carburetor base gasket engineered specifically for Holley 4-barrel carburetors rated at 390 CFM. This gasket provides a reliable seal between the carburetor and intake manifold, preventing vacuum leaks that can cause poor idle quality, reduced performance, and fuel economy issues.

Key Specifications:

• Material: High-quality fiber construction for excellent conformability and heat resistance
• Thickness: 0.047 inches (47 thousandths) for precise fuel delivery
• Bore Size: 1-19/32 inches (1.59375 inches) primary throttle bores
• Application: Holley 4-barrel carburetors, 390 CFM rating
• Mounting Pattern: Standard Holley 4-barrel flange

Cometic Gaskets manufactures this gasket using advanced die-cutting technology to ensure consistent dimensions and proper fitment. The fiber material compresses evenly under torque to create a secure, leak-free seal while accommodating minor surface imperfections. This gasket is ideal for performance rebuilds, carburetor replacements, or routine maintenance on small block and big block engines equipped with Holley carburetors.