292 ENGINE ASSEMBLY GMC GROUP 0 099 BEARING UNIT Crankshaft Front Intermediate See Group 0 096 for model application 0 100 CAP Crankshaft Center Bearing See group 0 095 for model application 0 101 BEARING UNIT Crankshaft Center Sea group 0 096 for model S4 applioation 0 102 CAP Crankshaft Rear Intermediate Bearin See group 0 095 for model 9 application 0 103 BEARING UNIT Crankshaft Rear Intermediate See group 0 096 for modal application 0 105 CAP Crankshaft Rear Bearing 73 78 All 3928975 1 I2 30 CAP 8 1790A 0 106 BEARING UNIT Crankshaft Rear 1 Upper and 1 Lower See Group 0 096 for model application 0 137 SEAL ASM Crankshaft and Rear Bearing Cap Oil 73 78 AlI 81azer Jimmy 473424 I 8 30 SEAL ASM 8 1670A 0 153 SHIM UNIT Crankshaft Bearing Cap 73 78 All 3911010 A R 3 70 SHIM UNIT cap 1 6 8 1819 73 78 A11 3928985 A R 4 60 SHIM UNIT rear 8 18I9 0 206 COVER ASM SCREW Crankcase Front End 73 74 All 3996616 I 19 05 COVER ASM 8 2200A 76 78 All 360910 1 I9 05 COVER ASM 8 2200A 0 207 GASKET Crankcase Front End Cover 73 78 All 3923472 1 87 GASKET 8 2230A 0 213 SEAL Crankcase Front End Cover 73 78 All 14033199 I 4 65 SEAL 2 ii 0 D stamped 3980267 8 1662E 0 269 HEAD Cylinder 73 78 AI1 6259693 1 215 00 HEAD w studs 8 0570A 0 289 GASKET GASKET UNIT Cylinder Head NOTE 1 Unit consists oh I Cylinder head gasket 7 Water outlet gasket 7 Valve rocker cover gasket 2 Vaive push rod cover gaskets 1 Inlet and exhaust manifold gasket 1 Thermostat housing gasket I Exhaust pipe packing and 12 Valve stem oil seals NOTE 2 Unit consists of i Cylinder head gasket 1 Water outlet gasket 2 Valve push rod cover gaskets l Inlet and exhaust manifold gasket 1 Thermostet housing gasket I Exhaust pipe ring and 12 Valve stem oil seals NOTE 3 This unit does not contain rocker covergasket Use silicone rubber sealant far engines with BTV formed in piece gasket 73 78 All 465893 1 9 15 GASKET 8 0630A 73 78 All 345029 1 23 95 GASKET UNIT Note I 8 0630A 77 All 463379 1 26 75 GASKET UNIT Note 2 3 8 0630A 78 All 474I05 I 19 35 GASKET UNIT 8 0630A 0 293 BOLT PIN Cylinder Head 73 78 All 3788417 14 91 BOLT X 13 x 3 8 0600A 75 78 All 585927 4 35 PIN dowal x tt 8 0659 0 296 VALVE Inlet GMC 8 07108 73 74 All exc L P Gas 75 78 All 3989088 6 N L VALVE inlet std 8 07108 73 74 All exc L P Gas 75 78 All 3997749 6 10 25 VALVE inlet 003 0 5 8 07108 73 74 All exc L P Gus 75 78 All 3997750 6 10 25 VALVE inlet 015 0 5 8 07I08 73 74 All exc L P Gas 75 78 All 3997751 6 10 25 VALVE inlet 030 0 5 8 07 08 73 74 All w L P Gas 3989086 6 1 1 20 VALVE inlet std 8 07108 0 297 VALVE Exhaust GMC 8 07008 73 All 3989089 6 24 35 VALVE exhaust std 8 07008 73 A11 3997723 6 24 35 VALVE exhaust 003 0 5 8 07008 73 All 3997727 5 24 20 VALVE exhaust 015 0 5 8 07008 73 All 3997725 6 28 50 VALVE exhaust 030 0 5 8 07008 74 78 All 6263778 6 27 25 VALVE exhaust std 8 07008 74 78 All 6263774 5 27 75 VALVE exhaust 003 0 5 8 07008 74 78 All 6263775 5 27 75 VALVE exhaust 015 0 5 8 07008 74 78 A11 6263776 6 27 75 VALVE exhaust 030 0 5 8 07008 WAREHOUSING AND DISTRIBUTIONDIVISION 0F GENERAL MOTORS CORPORATION LT TRUCK 5I REV 2 83 on 0 099 0 297