R l 4 366 ENGINE ASSEMBLY 0 616 BEARING UNIT Connecting Rod A 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 72 347002 3876092 347004 347005 374006 0 623 BOLT Connecting Rod Bearing Cap 71 72 All 3862720 16 24 x 2 knurled shank 0 626 NUT Connecting Rod Bearing Cap Bolt 71 72 All 3866766 A R 24 x thick hex head 0 629 PIS ON ASSEMBLY with Pin Refer to Piston Chart for model application NOTE Individual piston assemblies are availablefor 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 appear on your order Do not ship unit package quantity NOTE See Dea er Price Schedule P A 26 for applicable prices PISTON CHART Std 001 0 S 020 0 S 030 0 S 71 72 All w L P Gas 3955294 3955295 3955296 3955297 71 72 All exc L P Gas 3886172 3886173 T 3886175 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 G M P D warehouse refer to ACNC6775 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 engine Original Equipment Type Complete set for one engine per container Std 020 0 S 030 0 S 3 71 72 All 3886140 6259692 0 646 CRANKSHAFT 71 72 All 330570 1 I 1 0 649 BEARING Crankshaft Clutch Pilot 71 72 All 904983 1 ball type l 0 x 2 0 0 x N 0 659 BALANCER PULLEY Crankshaft NOTE ln some cases double groove pulleys may be used in place of single groove pulleys 71 72 All 364720 1 w pulley 4 groove 71 Ser 50 SBC 235 W B w Air V Brks 71 72 Ser 50 Conv w Air Cond 3929698 1 PULLEY 4 groove stamped 3979698 0 662 WASHER Harmonic Balancer and Crankshaft Pulley 71 72 All 3864814 1 balancer 0 666 FLYWHEEL with Ring Gear 71 72 All exc A T 3986183 1 71 72 All w A T 540 361950 1 71 72 All w P T 3991405 1 0 669 BOLT Flywheel to Crankshaft 71 72 All 839756 6 i 20 x 1 az O L 290M steel 71 72 All w P T 3701686 6 I 20 x 290M steel 0 673 GEAR Flywheel Ring 71 72 All exc A T 3991409 1 A 0 679 UNDER PAN COVER EXTENSION Flywheel 71 72 All exc A T 3765348 1 clutch 18 az wide 71 72 Ser 50 SBC w T H 475 3868810 1 trans conv 71 72 All w A T 3750343 1 COVER flywheel housing GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TM 0 61 6 0 679 0 74 REV 5 79