67 Ser 10 thru 30 327 3837223 1 1 90 cast aluminum cast 3837223 63 65 Ser 10 thru 30 230 exc D D 65 66 G 10 194 230 V 66 Ser 10 thru 30 250 exc D D 67 70 All Blazer 230 250 292 3789162 1 1 90 cast 3789162 63 4 WD 261 3764749 1 3 10 cast 3764749 63 64 Ser 10 thru 30 292 64 66 Ser 20 30 D D 230 250 3789538 1 3 50 cast 3789538 63 65 Ser 10 D D G 10 4 c I 64 G 1 0 194 3799344 1 1 90 cast 3 799344 66 Ser 10 w A l R 283 67 69 Ser 10 thru 30 G 10 20 283 307 327 350 exc Air Cond 70 All Blazer 8 cyl 3877660 1 2 10 67 70 All 3 53 5135633 1 29 69 ELEIOVV water outlet 1 154 GASKET Coolant Outlet 38 64 All exc 292 65 70 All Blazer 3701777 1 15 water outlet 2 holes I D 63 64 Ser 10 thru 30 292 64 65 Ser 20 30 D D 230 3789539 1 15 63 4 WD 261 3765024 1 15 67 70 All 3 53 5116092 1 16 elbow 1 159 HOSE TUBE ELBOW Radiator Inlet NOTE INLET hose is used between top of radiator and engine coolant outlet OUTLET hoses group 1 173 are used between bottom of radiator and cylinder block 38 70 All Blazer w 1Vz D straight hose 3701363A R 3 80 W5 I D x 36 long moulded 3701363 47 48 Comm cut at 3 mark 52 53 Comm exc D D cut at 2 mark 49 51 Comm 52 53 D D 54 55 Comm 1st Ser exc 261 3702348 1 1 40 MQ I D moulded 3702348 55 57 Ser 3 8 cyl 3723714 1 1 85 1 Cl D moulded 3723714 60 62 Ser 20 30 D D 3713897 1 1 80 1V I D moulded 3713897 58 59 Ser 3 8 cyl 60 62 Ser 10 thru 30 8 cyl 63 4 WD 8 cyl 1st Ser 3768956 1 2 40 1 I D moulded 3768956 54 55 All 261 60 62 Ser 10 thru 30 6 cyl exc D D 63 4 WD 6 cyl 1st Ser 67 4 WD 327 68 69 4 WD D D 8 cyl 69 G 10 20 Roof Mtg Air Cond w P G 6 cyl inlet 70 4 WD 8 cyl tube front 70 Ser 20 30 D D 8 cyl 3768767 1 1 85 front TV I D moulded 3768767 60 67 Ser 20 30 D D exc flat W S 5720459 1 4 80 radiator filler W2 l D x 23V O L 61 65 Ser 10 D D 230 66 Ser 10 D D 64 67 Ser 20 30 D D 230 250 3692230 1 2 25 HQ I D moulded 3692230 63 65 Ser 10 thru 30 230 exc D D P G H D Rad 65 G 10 66 G 10 194 3820922 1 1 80 W2 I D moulded 3820922 63 D D 230 exc 102 W B 3820924 1 1 60 W2 I D moulded 3820924 63 66 Ser 10 thru 30 292 exc D D 3865764 1 2 00 1I Z I D moulded 3865764 63 65 Ser 10 20 w P G 230 exc D D 63 64 Ser 10 thru 30 w H D Rad 230 65 Ser 10 thru 30 w H D Rad H D cooling Air Cond 230 j 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATION P A 31 1 REV 6 71 1 27 1 153 1 159