Fits Holley & Demon Square Flange 4-Barrel, 4 hole and open center applications.

Made from durable Mr. Gasket Performance Series 1/16 inch thick cellulose/nitrile composite gasket material. Precision die cut for excellent seal and fit. Can be trimmed if necessary. Incorporates perforated center for easy modification. Fits 4 hole intake manifold and simply remove center section for open center applications. Conforms easily to surface irregularities and creates a tight leakproof seal.