FUEL EXHAUST CARBURETION 3 670 VALVE ASSY Air Injection Reactor 0cn t 75 HR 4 pd w NB 2 1140 4 7043445 1 E G R 444 44 76 H 2BC w C C 140 4 7030885 1 diverter 4 75 H 1 BC w AJ 4 4 7043303 1 E G R 4 75 H 1812 exc AI 4 7043304 I E G R 3 675 HOSE CLIP EXTENSION PIPE ASSY Air Injection Reactor 73 75 H 3943838 1 1 19 EGR va1ve 74 H w IBC 140 3984517 1 CLIP EGFI valve hose 75 H 140 8270023 A 26 EXTENSION air injector pipe 75 HR 262 355931 1 PIPE ASSY 3 980 CLAMP GASKET TEE Air Injection Reactor 7375 H I40 331102 2 22 EGR pipe 72 H 3942534 1 11 GASKET air mj diverter valve 73 75 H 140 329700 I 27 GASKET EGR valve 73 75 1 140 333978 2 1 1 GASKET EGR pipe 71 73 H 140 3780758 I 47 TEE vec s1gna11 oee 10 1E5 3 685 CONVERTER ASSY ACTUATOR ASSY BRACKET ASSY HANGER Catalytic 75 H 140 9498906 1 190 75 H 140 8496393 1 260 76 HR 262 0998109 1 260 75 HR 262 1999542 1 ACTUATOH ASSY w rod exhaust heat 75 H 355383 I BRACKET ASSY converter 75 H 353938 1 HANGER convener 160 3 701 MUFFLER ASSY Engine Exhaust 71 H 1st design 3991306 1 23 25 used w I R tail pipe 71 H 2nd dexign 72 73 H 9259548 74 H 140 342888 1 19 50 74 I 1 I22 342890 1 75 H w 2BC 140 exc HR 349275 1 75 H vv 1BC H10 348279 1 75 HFI 262 363972 1 75 HR 140 353990 1 3 702 RESONATOR ASSY Exhaust 75 HR 262 353973 1 vv tailpipe 75 HF1 140 353991 1 w tailpiue 3 704 BRACKET ASSY CLAMP UNIT Muffler 71 75 H 339038 1 2 04 muffler tailprpe 75 HR 353979 1 muffler hanger 75 HR 349554 1 resonator and tail 71 74 H 2378915 1 97 CLAMP UNIT exhaust system 1 6 3 705 PIPE Muffler Tail 71 H 1st deslgn 3991309 I 5 95 1 71 73 H 2nd design 9293050 1 6 75 1 74 H 1 40 342889 1 6 25 74 H 122 342991 I 3 705 HANGER ASSY BRACKET ASSY Muffler and Tail Pipe 71 H Ist desrgn 3997248 I 1 4 1 used vv 1 4 tail pipe 71 H 2nd design 72 73 H 74 H 140 339035 I 1 41 attaches to tailpipe used w I tail pipe 72 73 H 9284311 1 1 87 74 H 75 H 140 339040 1 1 41 maehes to muffler 74 H 122 33906B I 1 4 1 attaches to taiipipe 75 H 353998 1 attaches to muffler 75 H 140 349515 1 attaches tu tailpioe 75 HR 353978 1 muffler 75 HR 353982 I resonator and tailpipe 72 73 H 9284307 1 2 54 BRACKET ASSY 74 75 H 339038 1 2 04 BRACKET ASSY 3 708 2 1 3 708 CLAMP UNIT Muffier Exhaust Pipe and Tail Pipe 71 75 H 3837878 1 B1 1 wil gipe 73 74 H 140 2378515 1 67 1 exhaust pipe 74 H 122 3857547 1 2 I exhaust pipe 74 H 122 1240744 1 70 2 exhaust pipe 1974 GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET P A 3OX T 670 3 708 3 8 REV 9 74