Ford FE Engines, 332 thru 428 ('58-'76), Header Applications, 2/Set 1-5/16"w x 2"h Square Port. 16-Bolt Pattern. 332 thru 428 ('58-'76) Header Applications Only. 2/Set. (See RF3050 for "Weld Bead" Header Applications.) Most FE gaskets have “16 Bolt Hole Patternâ€. Use the 8 bolt holes needed - the other 8 bolt holes do not impact the performance of the gaskets in any way.