Manufacturer Part Number : 476VD97. Type : PCV Valve Elbow. Application : Ford P-350 PCV Valve Elbow. PCV Valve Elbow. 1973 Ford P-350 Engine: 5.9L V8; 90 Degree Elbow; Hose to Oil Filler;. 1968-1972 Ford P-350 Engine: 3.9L L6; 90 Degree Elbow; Hose to Oil Filler;.