8564; Edelbrock; intake bolts; bolts; manifold bolts; bolt and washer kit; hardened washers; cadmium finish; Chevy; Big-block Chevy; 396-502; 12 point bolt head; 2161; 21611; 21613; 21614; 7161; 71611; 71614; 7163; 71631; 7164; 71641; 2561; 7561; 75611; 75613; 75614; 7562; 75621; 75624; 5061; 50611; 7520; 75201; 75204; 7522; 72554; 7115; 71151; 7136; 71363