307 ENGINE ASSEMBLY 0 029 BRACKET SHIELD Engine Mounting Con t 73 Nova 307 3998667 L H 2 80 BRACKET ASSY left 4 73 Nova 307 3998658R H 2 80 BRACKET ASSY right 71 72 All 307 3989442 1 93 SHIELD heat Note 1 NOTE I Used on LH side for Nova 0 033 BLOCK ASSY Cylinder NOTE CAUTlO ll Combination not appearing below should be checked in the Engine Series Number and Suffix Chart In front of catalog to determine if the combination was availah e in production lf not available ne attempt should he made to make the installation PARTIAL ENGINE NOTE Includes block crankshaft camshaft timing gears pistons and connecting rods 69 72 All 307 3970651 1 661 00 73 All 307 6259352 1 661 00 FITTED CYLINDER BLOCK Includes Pistons Pins Rings and Bearings 68 72 All 307 3970641 1 450 00 73 All 307 6259351 1 433 00 NOTE I When using on models with A T It will be necessary to remove clutch pl ot hearing from crankshaft NOTE 2 When us ng on l968 models it is mandatory to use 3957985 Inlet Manifold Gasket l nin 0 034 EXPANSION PLUGS Cylinder Block Also see 8 970 68439 Chevy Chevelle Camaro 307 72 73 All 307 838538A R 20 water jacket balance shaft hole cup type 1 68 All 307 3738306A R 51 lsquaze socket water jacket hole 1 4 70 71 All 307 3743389A R 26 water jacket hole 1 O D CUP TYPE 0 066 BOLT Crankshaft Bearing Cap 68 All 307 3872781 A R 31 I 14 x 3 az J 69 73 All 307 3932460 10 31 ll 14 x 3 az r 0 093 PLASTIGAGE Crankshaft Bearing 68 73 All 307 1390274A R 6 80 green package type PG I 12 pieces 0 095 CAP Crankshaft Front Bearing 68 73 All 307 3956688A R 10 05 N0 I 2 3 4 0 096 BEARING UNIT Crankshaft Front 1 Upper and 1 Lower See Chart for Model Application NOTE See Dealer Price Schedule P A 25 for applicable prices CRANKSHAFT MAIN BEARING CHART POSITION STD 001 U S 002 U S 009 U S 010 U S 020 U S 68 73 All 307 All exc Rear 3912038 3912039 3912040 3912037 3912041 3912042 88 73 All 307 Rear 3912030 3912032 3912033 3912034 39I1035 3912036 NOTE Bearings having no supplementary notes are Durex 100 0 099 BEARING UNIT Crankshaft Front Intermediate 1 Upper and 1 Lower See Chart Following Group 0 096 for Model Application NOTE See Dea er Pr ce Schedule for applicable pricesz 0 101 BEARING UNIT Crankshaft Center 1 Upper and 1 Lower See Chart Following Group 0 096 for Model Application NOTE See Dealer Price Schedule for app cable prices 0 103 BEARING UNIT Crankshaft Rear Intermediate 1 U per and 1 Lower See Chart Following Group 0 096 for Model Application NOTE See Dealer Price Schedule for applicable prices 0 105 CAP Crankshaft Rear Bearing 68 73 All 307 3911007 1 5 90 0 106 BEARING UNIT Crankshaft Rear 1 UF er and 1 Lower See Chart Following Group 0 096 for Model App mation NOTE See Dea er Pr ce Schedule for applicable pricaa GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 1I 0 029 0 106 0 sz REV 4 77