Mr. Gasket 116 Intake Gasket Forms an airtight leak proof seal Engineered specifically for small block Chevys with 2.19 inch by 1.31 inch intake ports can be trimmed into an infinite number of configurations to modify the intake ports to your exact specifications Ensures optimum torque retention ideal crush resistance and excellent sheer strength sealing with minimal clamp force yet still releasing easily every time Comes complete with manifold end rail seals and a distributor gasket