GM CHEVROLET i 5 h O y v 8 CYLINDER 1 2 4 1 r Ir 1 I 6 CYLINDER 1963 65 CRANKCASE VENTILATOR SYSTEM Key Description Group Key Description Group 1 Grommet Crankcase Ventilation Valve to Valve Cover 1 762 5 Elbow Crankcase Vent Hose 1 745 2 Valve Assembly Crankcase Ventilation 1 745 6 Hose Crankcase Vent 3 Clamp Crankcase Vent Hose 1 750 1 762 4 Hose Air Cleaner to Valve Rocker Cover 1 745 7 Connector Crankcase Ventilator Hose 1 745