POSITIVE CRANKCASE VENTILATION Cont d REPLACE REPLACE MENT MENT DESCRIPTION VALVE DESCRIPTION VALVE BUICK SPECIAL CHEV GMC TRUCK Light Duty Cont d 1961 62 All V 8 5647361 P models w 292 eng first 1962 All V 6 5647361 jobs no similar part on cvsoe after jobs 6418439 1963 All 6418753 cvso7 1964 All 6420192 1964 All G10 G910 4 cyl 6418438 cvsos CHEV GMC TRUCK Light Duty 1964 All G10 G910 6 cyl 6418440 C V469 1955B 57 All w 6 cyl 5647228 CHEV GMC TRUCK Heavy Duty cvzoz 1956B 57 14 94 57 67 w 8 cyl 5645178 1955B 57 All w 6 cyl 5647228 cvass 1958 59 34 35 5647228 1955B 56AA11 w V 8 5647234 cv469 1956B 57 All w V 8 5646178 1960 62 All w 6 cyl 5647228 1958 62 All w 235 261 6 cyl 5647228 cvso7 1963 All w 153 engine 6418438 1958 59 All w V 8 5646178 cv609 1960 62 60 thru 980 w V 8 5646178 1963 64 All w 230 engine 6418440 1960 All w 302 6 cyl 5647230 All w 292 engine exc cvsos P models 6418439 1963 64 All w 292 6 cyl 6418439 cv590 1963 64 All w V 8 5649689 All w 283 engine 5649689 1963 All w 230 6 cyl 6418439 1964 All w 153 eng first jobs cvso no similar part on after jobs 6418438 1964 All w 230 6 cyl 6418440 Notes