The Allstar Performance Carb Gasket 4150 4BBL 4-Hole is the perfect solution for ensuring optimal performance of your carburetor system. Designed specifically for 4-barrel carburetors with a square bore, this base plate gasket features a 4-hole layout and is crafted to withstand the pressures and temperatures of high-performance engines. At 0.063 inches thick, the composite material provides a reliable seal to prevent leaks and promote efficiency. Measuring 8.05 inches in length, 6.65 inches in width, and 0.6 inches in height, it fits snugly and ensures smooth operation.