400 ENGINE ASSEMBLY 0 546 BEARING Camshaft Center and Rear Intermediate 71 All w 28C 400 3723586 2 1 70 stamped 3 4 71 All w 4BC 400 3967809 2 1 85 stamped 3 4 0 549 BEARING Camshaft Rear 71 All w 2BC 400 3723585 1 1 70 stamped 2 0 543 71 All w 4BC 400 3967810 1 1 85 stamped 2 0 543 0 553 PLUG Camshaft Bearing Hole in cylinder block 71 Allw 2BC 400 3704158 1 10 rear brg 71 All w 4BC 400 3859926 1 10 rear brg 0 603 ROD ASSEMBLY Connecting 71 All w 2BC 400 3951629 8 7 60 71 All w 4BC 400 3933174 8 7 50 0 616 BEARING UNIT Connecting Rod NOTE See Dealer Price Schedule P A 26 for applicable prices CONNECTING ROD BEARING UNIT CHART STD 001 U S 002 U S 010 U S 020 U S 71 All w 2BC 400 3910555 3910556 3910557 3910558 3910559 71 All w 4BC 400 3876091 3876092 3876093 3876094 3876095 0 623 BOLT Connecting Rod Bearing Cap 71 All w 2BC 400 3951631 16 35 24 x 1 i knurled shank 71 All w 4BC 400 3862720 16 35 s 24 x 2 a knurled shank 0 626 NUT Connecting Rod Bearing Cap Bolt 71 All 400 3886766 A R 05 3 e 24 x 3 thick hex head 0 629 PISTON ASSEMBLY with Pin Refer to Piston Chart for model application NOTE Individual piston assemblies are available for warranty purposes and for replacement of pistons 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 NOTE See Dealer Price Schedule P A 26 for applicable prices PISTON CHART STD 001 O S 0100 S 0200 S 030 O S 71 All w 2BC 400 3991457 3991458 3991459 3991460 71 All w 4BC 400 L H 3993861 3993863 3993865 3993867 71 All w 4BC 400 R H 3993862 3993864 3993866 3993868 0 643 RING UNIT Piston Service Sets NOTE Individual cylinder piston ring units std size only for warranty replacement in a single engine cylinder may be ordered thru the local GMPD warehouse refer to ACNC 6775 Identify by engine model and year Each of these std size piston ring units include the necessary components ring spacers segments expanders required for replacement in a single cylinder NOTE See Dealer Price Schedule P A 26 for applicable prices Original Equipment Type complete set for one engine per container STD 020 O S 0300 S 71 All 400 3977626 3977627 3977628 1 0 646 CRANKSHAFT 71 All w 2BC 400 3951528 1 107 30 Note 1 71 Allw 4BC 400 3882841 1 107 15 Note 1 NOTE 1 When used on A T it will be necessary to remove the pilot bearing 0 649 BEARING Crankshaft Clutch Pilot 71 All 400 3752487 1 95 bush type O D x 0 659 BALANCER PULLEY Crankshaft NOTE In some cases double groove pulleys may be used in place of single groove pulleys NOTE Crankshaft harmonic balancer is also referred to as torsional damper 71 All w 2BC 400 3959510 1 17 75 stamped 9510 71 All w 4BC 400 3880008 1 17 50 71 Pass Chevelle w Air Cond 4BC 400 3937787 1 4 50 PULLEY 3 groove 71 All w P S 4BC 400 exc C A C 3955290 1 3 45 PULLEY 71 Camaro w 4BC 400 exc P S