EXTENSION Engine to Muffler Exhaust 38 64 Pass w A T 3748781 1 2 0 D 1 z O L steel 38 64 Pass 3890689 A R 2V2 O D 1 z 0 L steel 38 64 Pass exc A T 3890382 1 2 O D 1 z O L stainless steel 38 64 Pass 3890383 1 2 O D 2 O L stainless steel 3 610 FLANGE Exhaust Pipe Packing 38 49 Pass 51 53 Pass 216 593607 1 2Vi D cast 593607 49 50 Pass exc Conv 3696701 l 2 D Note 1 NOTE 1 Use with exhaust pipe 3700499 on 1949 50 models 51 63 Pass 6 cyl exc 216 exh pipe packing 55 56 Pass 8 cyl exc dual exh 3696988 1 exh pipe to crossover pipe 2 l D cast 3696988 57 61 Pass 8 cyl exc H Per 62 64 Pass 283 exc O D A l R 3734402 A R crossover pipe assy 61 64 Pass 3850231 1 2V2 w 3 holes 3 611 PACKlNG GASKET Exhaust Pipe 38 64 Pass 3696990 A R exhaust pipe 2V3 I D x 2 O D 38 64 Pass 593606 A R 17a l D x 2 O D x thick 55 56 Pass 3709586 1 17a I D x 2V2 O D x thick 59 64 Pass 3767556 2 exhaust pipe 2 2 I D x 3 0 D 49 50 Pass 3692831 1 GASKET flange 2Vz D 55 56 Pass 8 cyl exc dual 4BC 3711569 A R GASKET flange 2 l D 56 Pass w dual 4BC 57 61 Pass 8 cyl exc H Per GASKET exhaust pipe triangle type outlets 61 Pass H Per w H L Cam 348 62 64 Pass 327 427 exc Sp H Per 3946828 A R exh pipe to manifold spacer 59 60 Pass 3 2BC w H Per 61 Pass H Per w reg cam 348 61 Pass w Sp H Per 348 61 64 Pass 409 62 64 Pass w H Per 1345198 A R GASKET exh manifold valve to manifold 3 613 STUD NUT WASHER Exhaust Pipe 38 64 Pass 3760425 A R exh pipe and muffler exh crossover pipe to exh manifold 16 x 16 x 2 3 275 50 64 Pass 3760426 A R exh pipe and muffler exh crossover pipe to exh manifold 16 16 x V 3 275 38 64 Pass 838780 A R NUT exhaust pipe and muffler 16 x thick brass 38 64 Pass 3829086 A R NUT exh pipe to exh manifold 16 x Va thick brass 38 64 Pass 3754153 A R WASHER exh pipe to exh manifold l D x V4 O D x V thick 5 383 3 616 RETAINER Exhaust Pipe Support 58 60 Pass 3751443 A R clamp and insuIator 3 704 3 640 THERMOSTAT Exhaust Manifold Heat Control Valve 38 64 Pass 6 cyl 838573 1 3 641 SPRING Manifold Heat Control Valve 38 64 Pass 6 cyl 602799 1 rear anti rattle V4 wide stock coiIed 57 60 Pass 8 cyl exc F I 61 Pass w Sp H Per 62 64 Pass 8 cyl 3746600 1 anti rattle 63 64 Pass 6 cyl 3792818 1 front anti rattle 3 647 VALVE ASSY BUSHING Exhaust Manifold 55 Pass 8 cyl 56 Pass 8 cyl exc dual 4BC 3725981 1 w thermostat 57 61 Pass 8 cyl exc F l H Per 61 Pass H Per w H L cam 348 62 64 Pass 8 cyl exc 409 H Per w 327 3887024 1 1970 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATlON P A 30 3 15 3 609 3 647