66 Ser 50 60 283 327 exc Air Equip 3888899 1 25 25 59 Ser 7 8 348 ADAPTER manifold 3757326 1 8 95 60 65 Ser 60 70 348 ADAPTER manifold 3766520 1 5 50 55 57 ALL 8 cyl exc 322 58 66 ALL 283 327 GUARD manifold oil splash 3758369 1 80 58 65 ALL 348 409 GUARD manifold oil splash 3814817 1 1 51 65 66 Ser 50 60 6 cyl exc DIESEL PLUG manifold plug 3868414 1 10 3 270 GASKET GASKET UNIT ManifoId to Engine 56 59 ALL 322 intake cover 1172722 1 18 56 59 ALL 322 intake stainless steel 3760518 2 2 00 TNOTE When used on SBC the two holes in the crossover area must be enlarged to SA diameter 62 66 Ser 50 60 2 cyc DIESEL exhaust 5119006l 1 42 62 66 Ser 50 60 2 cyc DIESEL manifold outlet elbow 5100147 1 3 611 62 66 Ser 50 thru 80 2 cyc DIESEL exhaust 5116205 2 26 63 66 ALL 6 cyl inlet and exhaust 3826261 1 1 16 65 66 4 cyc DIESEL inlet and exhaust 24526930 1 75 58 Ser 4 5 6 8 cyl lst design GASKET UNIT intake 1 front 1 rear 56 Ser 4 8 cyl 1 distributor 2 side gaskets 3711676 1 1 89 55 Ser 5 6 8 cyl 2nd design GASKET UNIT intake 1 front 1 rear 1 distributor 2 side gaskets 3733878 1 1 95 56 Ser 5 7 8 56 Ser 4 8 cyl H D GASKET UNIT exhaust 1 front 1 rear 55 62 ALL 6 cyl 1 center 1 flange gasket 3694871 A 1 1 06 ANOTE If used on jobs after 1956 it is also necessary to use 3731062 exhaust pipe flange gasket and discard 3692831 57 59 Ser 5 6 7 8 283 exc L D GASKET UNIT intake 1 front 1 rear 60 62 Ser 60 283 327 1 distributor 2 side gaskets 3742195i 1 2 40 55 56 Ser 4 5 6 7 8 8 CYL GASKET UNIT exhaust 1 center 1 mfld valve 2 end mfld gaskets 3711675 2 67 NOTE For R H installation 1 extra gasket required 3711569 group 3 611 58 65 ALL 348 409 GASKET UNIT intake 1 front 1 rear 1 distributor 2 side gaskets 3750620 1 1 89 57 61 Ser 4 8 cyl 59 Ser 6 w L D 283 60 62 Ser 40 50 8 cyl GASKET UNIT intake 1 front 1 rear QQ 6 6 ALL 283 327 2 side gaskets 1 special gasket 37341151 1 1 89 66 Ser 60 80 366 GASKET UNIT inlet 2 end 2 side 1 distributor gasket 3900942 1 ITNOTE These units identical except 3742195 has carburetor crossover heat restriction insert and 3734115 does not 3 272 GASKET Intake to Exhaust Manifold 55 62 ALL 6 cyl 3 wide on I D 4 holes 3835572 1 19 63 66 ALL 6 cyl 3788485 1 19 3 273 CLAMP SLEEVE Manifold 55 62 ALL 6 cyl center 2 O L 3835505 4 19 55 62 ALL 6 cyl end 1 O L 3835424 2 19 63 66 ALL 6 cyl at exhaust ports 3823035 2 18 63 66 ALL 6 cyl inlet and exhaust 3792519 4 18 65 66 4 cyc DIESEL inlet and exhaust 838546 10 19 55 62 ALL 6 cyl SLEEVE intake manifold to cyl head 1I O D closed x wide 3835506 3 15 3 275 STUD BOLT NUT LOCK WASHER Exhaust ManifoId to Exhaust Pipe 55 66 ALL muffler and exhaust pipe exh crossover pipe 16 16 X 2 4 3760425 A R 15 55 65 ALL 6 cyl 1 end threaded other end used as dowel to line up mfld 16 x HA 3835487 2 10 966 I 3 265 3 275 Chevrolet Motor Division 261 HD1 General Motors Corporation REVISED MAY 1 1966 L EEE