Edelbrock; Edelbrock Valve Cover; Valve Cover; PCV; Breather; PCV Baffle; Baffle; Breather hole; PCV hole; 1-1/4in. diameter hole; Aluminum roller rocker; Aluminum; Stamp steel; sand cast; 4643; Signature Series Valve Covers; Signature Series Valve Covers; Chevrolet; 262; 400; 59-86;