I 307 AND 327 ENGINE ASSEMBLIES V I 1 l I V 0 626 NUT Connecting Rod Bearing Cap Bolt V Con t VA V NOTE 1 Also used with boltslnot requiring cotter pins V I I 3 0 629 PISTON ASSEMBLY with Pin A V I NOTE Individual piston assemblies are available for warranty purposes and for replacement ofpistons I damaged when making repairs to engine assemblies When ordering such parts it is necessary that you specify on your order the reason the parts are required and also that the following note appears on your order Do not ship unit package quantity V NOTE See Dealer Price Schedule P A 26 for applicable prices V V V PISTON CHART V T STD 001 0 8 A 010 0 8 V 020 O S 030 0 8 65 66 All 327 3816974 3816975 V V 3816977 66 72 All Blazer 307 T 3923294 3923295 3923297 0 643 V RING UNIT Piston Service Sets V I I S V NOTE See Dealer Price Schedule P A 26 for applicable prices Original Equipment Type completeset for one engine par container T V STD V 020 O S V 030 0 8 V 66 72 All Blazer 307 326400 3892388 3285030 65 70 All Blazer 327 V 3285060 V l i V 328516 NOTE 1 These are Molybdenum Premium Rings 0 646 CRANKSHAFT l I V NOTE 1 When used on A 7Z it will be necessary to remove the pilot bearing V V 65 67 All 327 3689305 1 V 68 All 327 4 3951604 1 V Note 1 66 All 307 3930609 I 1 Note 1 69 72 All Blazer 307 3941172 I NoteV1 V T V 0 649 BEARING Crankshaft Clutch Pilot 3 I l 65 72 AII Blazer 307 327 3752467 1 bush type f I D x I 0 0 x 4 0 659 BALANCER PULLEY HUB KEY Crankshaft V NOTE 1 Used with pulleys and hubs having a shallow V deep keyway only All full depth slots V A take standard Woodruff kay 10675 1 two short or 144542 one long in group 8 960 NOTE Crgnkshaft harmonic baIancer is also referred to as torsional damper I NOTE ln some cases double groove pulleys may be used in place of single groove pulleys V 66 All 307 g 3696904 1 w o pulley hub 4 v0 D Q 65 66 All 327 3694331 1 Vw o pulley 12 holes in weight drill I pin balanced torsional 69 72 All Blazer 307 6272223 1 65 72 All Blazer 307 327 exc 62 V I amp Air Cond H D Cooling I i A l R 3755620 1 T PULLEY stamped 3755820 1 groove V T G Il X ss h0lG8 65 72 All Blazer w 62 amp Air V V Cond H D Cooling A I R V 307 327 3744043 1 PULLEY stamped 3744043 2 groove V V V 6 0 0 x thk 9 holes 67 69 All Blazer w 62 amp Air Cond A I R 307 327 exc P S I 70 Ser 20 30 307 exc D D V P S I 70 72 Ser 20 30 D D 307 exc V I V V P S 3751232 1 V PULLEY frontV stamped 3751232 1 V I groove 6 0 0 x 11 thk 9 holes V V 66 Ser 10 w Acc Air Cond 307 V V V 327 3650636 1 PULLEY stamped 385083866 2 groove A a 7 0 0 x 1 thI 9 holes V 66 72 All w P S 307 327 3923696 1 PULLEY front stamped 3923898 2 VV V V groove 6 0 0 x 2 V thk 5 holes V and 4 spokes V l 71 72 G I0 thru 30 w Floor Mtd A C 3993344 1 PULLEY ASSY J 71 G 10 thru 30 exc floor mtd V V V A C V V 1 GM PARTS DIVISION GENERALVVMOTORS CORPORATION CHEVROLET 72TL 0 626 0659 0 as REV 5 79 I