FU EL EXHAUST 3 613 STUD BOLT NUT SPRING EXHAUST PIPE TO EXHAUST MANIFOLD Con t 75 All X 260 Eng II I I 587575 AR 1 30 SPRING exh pipe flg I I 3 616 DAMPENER SUPPORT EXHAUST PIPE 74 All X I 488974 1 6 00 DAMPENER Boom 74 75 BR II II II I I I 414136 I 4 55 SUPPORT 3 640 THERMOSTAT EXHAUST MANIFOLD VALVE 88 74 L 5 Eng 3881831 1 THERMOSTAT 68 70 350 Eng 1382762 1 3 95 THERMOSTAT 69 400430 Eng 1382762 1 3 95 THERMOSTAT 3 640 SPRING EXHAUST MANIFOLD THERMOSTAT 67 400430 Eng 1380121 I 35 SPRING heat control valve stop anti rattle 68 69 All 8 1380121 I 35 SPRING heat control valve anti rattle stan 70 350 Eng 1380121 I 35 SPRING heat control valve anti rattle stop 3 640 VALVE SOLENOID EXHAUST MANIFOLD HEAT CONTROL 64 All V 6 1386476 1 30 50 VALVE fIg 64 66 400401 425 Eng 1377547 1 3000 VALVE Note for 1964 65 models file r from manifold boss located near the flange to allow clearance for the stop spring see service info ltr 66 149 85 67 225 300 340 Eng 1386476 1 30 50 VALVE 66 70 350 Eng 1387452 1 27 25 VALVE 67 69 400 430 Eng 1387452 1 27 25 VALVE 75 X 250 1997449 1 20 40 SOLENOID power heat valve 3 641 SPRING EXHAUST MANIFOLD HEAT TRAP 62 70 All as req 1179444 1 36 SPRING heat trap anti rattle 3 647 BUSHING VALVE EXHAUST MANIFOLD fa 68 75 L 6 Eng 3848282 2 RUSHING shaft 75 All X L 6 Eng 343368 1 51 00 VALVE exh manif heat 3 650 PULLEY AIR INJECTION REACTOR PUMP 72 75 All 1238316 1 4 10 PULLEY driven 1 groove x 4 0 0 3 mounting holes to A l R pump 73 74 All 350 Eng less A C or H D Cooling 1241460 I 19 70 PULLEY driving 2 groove x 6 0 0 1 062 73 75 L 6 Eng 3927116 1 4 05 PULLEY driving 1 groove x 5 0 D 75 All X 260 Eng A C 412335 1 6 90 PULLEY 3 655 ADAPTER BRACE BRACKET BOLT LINK SHIELD SPACER STRAP AIR INJECTION REACTOR PUMP NOTE 1972 lst type one piece aluminum die cast rr mtg bracken 2nd type welded sheet metal rr mtg brk 75 All H V 6 Eng Calif Exh Emission less A C 25504167 1 8 85 ADAPTER air pump mtg rr 72 All 8 C Znd Type 1249630 1 10 10 BRACE A l R pump adi 73 74 All A B C E X 1249630 1 10 10 BRACE A l R pump adj 73 74 All X L 6 Eng less A C 329664 1 3 40 BRACE air injection pump 74 L 6 Eng A C less P S 3916960 1 2 50 BRACE AIR pump gen 76 L 6 Eng less A C 354564 1 6 80 BRACE A I R pump 75 All X V 6 Calif Exh Emission 1249630 1 10 10 BRACE A LR pump adj 75 All X 350 Eng 1249630 1 10 10 BRACE A I R pump adj 72 All E 455 Eng A I R 1249630 1 10 10 BRACE A I R pump adj 72 All B C 455 Eng 1st Type 1249630 1 10 10 BRACE A I R pump adj 15 All X L 6 Eng A C 355727 I 11 00 BRACKET A I R pump 75 All X L 6 Eng C T 3 Speed T H 350 Trans Calif A C 352192 I 1 35 BRACKET AIR pump 75 All X L 6 Eng A C 355728 I 8 80 BRACKET A l R pump adj 66 67 All 9424877 4 35 BOLT pump cvr r 18 x 8 900 75 All X 260 Eng 22503797 I LINK pump adj 74 75 All A B C E X 1245403 1 2 25 SHIELD air pump bracket 75 All X L 6 Eng A C 355729 1 84 SPACER A I R pump brkt 73 All X L 6 Eng 3917385 1 35 STRAP htr hose to air injector brkt 9 242 WAREHOUSING AND DISTRIBUTION DIVISION OF GENERAL MOTORS CORPORATION BUICI 40 REV 4 83 3 17 3 61 3 3 655