2 35O ENG INEASSEM BLY1 2 I V I 0 818 BEARING UNIT Connecting Rod 1 Upper and 1 Lower Con t 1 i CONNECTING ROD BEARING UNIT CHART 2 W MODEL USAGE STD I 001 U S 002 U S 010 U S 020 U 9 89 72 All Blazer 350 391 0555 3910558 3910557 3910558 3910559 J V 0 823 V BOLT Connecting Rod Bearing Cap E 89 72 All Blazer 350 V 3918399 18 9 24 x 1 I s 1 AV 0 828 NUT Connecting Rod Bearing Cap Bolt V 1 A I V NOTE 1 Also used with bolts not requiring cotter pins I 89 72 All Blazer 350 3888788 A R 24 x thick hex nut both ends s flat Note 1 V 0 829 PISTON ASSEMBLY with Pin 8 A NOTE individual piston assemblies are available for warranty purposes and for replacement ofpistons A damaged when making repairs to engine assemblies When ordering such parts it is necessary that you 1 specify on your order the reason the parts are required and also that the following note appears on B your order Do not ship unit package quantity V 1 V V V NOTE See Dea er Price Schedule P A 28 for applicable prices V I V I PISTON CHART I STD 001 0 9 i 030 0 9 V 89 AlI Blazer 350 exc Light 1 I Duty V V 70 72 All w L P Gas 350 3947748 3947748 3947752 89 All w Light Duty 350 I I 70 All Blazer 350 exc 1 V g 1 L P Gas V 3911020 3911021 3911023 71 72 All Blazer exc L P Gas 3991 488 VV 3991489 3991491 g B 0 843 RING UNIT Piston Service Sets A Q I A V NOTE See Dealer Price Schedule P A 126 for applicable prices V w Original Equipment Type complete set for oneengine per container unless otherwise noted Q STD V 030 0 9 Vi V V 89 72 All Blazer 350 328508 V 328518 I I I A NOTE 1 These are Molybdenum preminum rings I 1 V NOTE 2 Single cylinder replacement only I I 0 848 CRANKSHAFT l V V NOTE 1 When used on A 7T it will be necessary to remove the pilot bearing i 89 All Blazer 350 exc light 1 I duty 1 i 70 72 All w L P Gas 350 3941190 1 P Note 1 1 89 All w light duty 350 I I P V P V 70 72 All Blazer 350 exc L P Gas 3932444 1 1 Note 1 V 0 849 BEARING Crankshaft Clutch Pilot V I 89 72 All Blazer 350 3782487 1 bush type u l D x 1 u V 0 0 x 0 859 BALANCER PULLEY iCrankshaft I I l NOTE Crankshaft harmonic balancer is also referred to as torsional damper 2 V NOTE ln some cases double groove pulleys may be used in place of single groove pulleys 89 All w light duty 350 I 10 72 All w L P Gas 350 8272221 1 1 1 1 89 All 350 exc light duty V 89 72 All Blazer 350 exc L P Gas 8272222 1 I 89 72 All Blazer 350 exc 62 amp V Air Cond H D Cooling A I R NB 2 Q 3755820 1 PULLEY stamped 3755820 I groove V V 8 Vx thk 12 holes 89 72 All Blazer w 82 amp Air A V Cond H D Cooling A l R 350 I 3744043 1 PULLEY stamped 3744043 2 groove I al I B la 0 0 x 1 thk 9 holes I i GMPARTS DIVISION GENERAL MOTORSICORPORATION CHEVROLET 72TL 0 618 0 659 V V 0 vs 4 REV 5 79 V i