454 ENGINE ASSEMBLY GMC GROUP 0 293 lC0n t 73 78 All M H C 3877688 24 81 BOLT long 4 4 0 L raised cross on head 4 4 8 0600A 73 78 All M H C 4 44 3894327 4 35 PIN dowel x dla 4 8 0655 0 296 VALVE Inlet GMC 8 07108 73 78 All M H C 6263754 A R 10 25 VALVE std 8 07108 73 78 All M H C 6263767 A R 10 25 VALVE 003 0 5 8 07108 73 78 All M H C 6263788 A R 10 25 VALVE 015 0 5 8 0710I 73 78 All M H C 6263769 A R 10 25 VALVE 030 0 5 8 07108 0 297 VALVE Exhaust GMC 8 07008 73 78 C I 73 78 C 2 Sub 3931006 A R 1 1 95 VALVE std 8 07108 73 78 C 1 73 78 C 2 Sub 3931097 A R 11 95 VALVE 003 0 S 8 07I08 73 78 C I 73 78 C 2 5ub 3931098 A R ll 55 VALVE 0 5 0 5 8 07108 73 78 C 1 73 78 C 2 5ub 3931095 A R 11 90 VALVE 030 0 S 8 07I08 73 78 C 2 Cab 73 78 CP 3 M H C 14045145 A R 27 75 VALVE std 8 0700D 73 78 C 2 Cab 73 78 CP 3 M H C 6263734 A R 26 00 VALVE 003 0 5 8 07000 73 78 C 2 Cab 73 78 CP 3 M H C 6263735 A R 27 75 VALVE 015 0 5 8 07000 73 78 C 2 Cab 73 78 CP 3 M H C 6263736 A R 27 75 VALVE 030 0 5 8 07000 0 303 SPRING SHIM Valve 73 74 AII M H C 353075 16 4 10 SPRING w damper 8 0820A 75 78 All M H C 3887I25 I6 3 65 SPRING w damper 8 0820A 73 78 All M H C 3875516 8 41 SHIM valve spring 8 0815 0 308 SEAL SEAL UNIT Valve Spring Cap NOTE 1 Unit consists of 8 inlet valve stem oil seals 2 valve stem protective plastic capsules and 1 instruction sheet NOTE 2 On 1976 vehicles equipped with lst design inlet seals the inlet seals do not have retaining rings Q attached 73 78 All M H C 460527 A R N L SEAL inlet valve stem 0il Note 2 8 0795 0 309 CAP ROTATOR ASM Valve Spring 73 78 All M H C V 3 864900 16 82 CAP 8 0730A 73 78 All M H C 330848 8 6 50 ROTATOR ASM exhaust valve 8 0730A 0 310 KEY Valve Stem 73 78 All M H C 3947880 32 4I KEY green 8 07400 0 333 ARM Valve Rocker 73 78 All M H C 6258611 16 N L ARM w ball and nut 8 0825A 0 386 COVER ASM COVER UNIT Valve Rucker NOTE 1 Unit consists ok 1 Velve rocker L H cover asm and 1 instruction sheet NOTE 2 Unir consists ok 1 Valve rocker H H cover asm 1 Oil fill cap end I Instruction sheet 75 76 All M H C 14022195 L H 26 00 COVER ASM left 8 0620 75 76 C 1 2 3 346288 R H 25 00 COVER ASM right 8 0620 75 76 P 3 M H C 14022196 R H 25 00 COVER ASM right 8 0620 77 78 All M H C 14002057 L H 24 50 COVER ASM left 8 0820 77 78 C 1 2 3 461328 R H 25 00 COVER ASM right 8 0620 77 78 P 3 M H C 461 334R H 25 00 COVER ASM right 8 0620 73 74 All M H C 338281 L H 23 95 COVER UNIT le1t Note 1 8 0820 73 74 All M H C 338262 R H 24 05 COVER UNIT right Note 2 8 0620 0 413 BOLT REINFORCEMENT Valve Rocker Cover NOTE 1 Use with 180016 Bolt 73 76 All M H C 180016 1 28 BOLT A 20 x 8 900 8 0875A 77 All M H C 388708 14 28 BOLT 4 20 x ri 8 0875A 78 All MHC 454 460578 14 35 BOLT 20 x 8 0875A 73 76 All M H C 3877670 A R 26 REINFORCEMENT I 0 L Note 1 8 0665A 0 423 GASKET Valve Rooker Cover WAREHOUSING AND DISTRIBUTIONDIVISIDN 0F GENERAL MOTORS CORPORATION LT TRUCK 51 0 293 0 423 cna REV 2 83