Q 29 2 ENGINE ASSEMBLY l I 0 643 RING UNIT Piston Service Sets I NOTE See Dealer Price Schedule l A 26 for applicable prices s I A Original Equipment Type complete set for one engine perrcontainer I I I STD 020 0 S 030 0 S 63 72 All 292 326394 326397 I F These are Molybdenum premium rings I 0 646 CRANKSHAFT I I I P s I NOTE 1 When using on models w 7ZH it will be necessary to use Flywheel 3992209 6 flywheel Bolts 3910368 and 3 dowel Pins 3886062 I NOTE 2 Includes crankshaft flywheel dowel pins and flywheel bolts 66 All w T H 292 I I 67 72 All 292 3910362 1 Note 1 l 63 66 All 292 exc A T I 3909427 1 CRANKSHAFT UNIT w flywheel Note 2 0 649 BEARING Crankshaft Clutch Pilot P 63 72 All 292 V 3 752487 1 bush type sg l D x 1 0 D x P 0 659 BALANCER HUB KEY PULLEY Crankshaft NOTE 1 Used with pulleys and hubs having a shallow Vu deep keyway only All full depth A slots I take standard Woodruff key 10675 1 two short or 144542 one long in group 8 960 I NOTE Crankshaft harmonic baIancer is also referred to as torsional damper NOTE ln some cases double groove pulleys may be usedin place of single groove pulleys I 63 67 Ser 20 30 D D 292 3857352 1 vv pulley double 6 O D 63 67 Ser 10 thru 30 292 exc D D I 68 72 All 292 3980230 1 I w pulley 3 groove 7 O D I L 63 65 All 292 5743323 1 HUB pulley I 65 66 All w key long x wide x I high 3883206 A R I KEY crankshaft pulley hub Note 1 65 66 All w key 1 long x wide I I r x u high 3885092 1 KEY crankshaft pulley hub Note 1 I 68 All w Acc Air Cond 292 3790337 1 I PULLEY stamped 3790337 1 groove I I I P 6u nu 3 10165 65 72 All 292 P 3865792 1 PULLEY front stamped 3865792 BN 1 groove 6 4 0 D x 1 thk 3 holes 71 72 All w Acc Air Cond 3865792 1 I PULLEY front I 0 662 WASHER Harmonic Balancer and Crankshaft Pulley I 63 72 All 292 3739422 1 balancer 0 666 FLYWHEEL with Ring Gear vi 3 I y I I NOTE 1 Dowel holes are drilled only reaming instructions are as follows 1 Align dowel holes of I flywheel and crankshaft and installflywheel bolts torque to 1 10 ft lbs 2 Ream three dowel holes to 4520 4527 3 Install three 3886062 dowel pins drive pins flush with flange on crankshaft 63 66 All 292 exc A T 3998281 1 solid type 65 66 All w P G 292 I 3789821 1 spoke type 67 70 All 292 exc A T I 71 72 All exc T H 460582 1 solid type I 67 70 All w P G 292 374690 1 w reinforcement spoke type Note 1 I 67 70 All w T H 292 1st design 71 72 Sar 10 20 w T H 361051 1 w reinforcement spoke type Note 1 70 All w T H 292 2nd design e I 71 72 Ser 30 w T H 361052 1 w reinforcement spoke type 0 669 BOLT DOWEL Flyvvheel to Crankshaft I e 3 NOTE 1 It will be necessary to align the dowel pin hole in flywheel and crankshaft and ream together to I I I 63 72 All 2 exc A T 839756 6 20 x 1 I 63 72 All w A T 292 3727207 6 V 20 x 290M steel 67 72 All 292 exc A T 391036 6 I 20 x I e 67 72 All w A T 292 3910368 6 20 x I 63 72 All 292 I 3886062 1 I DOWEL x l Note 1 I 0 673 GEAR Flywheel Ring I NOTE Ring gears with 153 teeth are only available as part of group 0 666 Flywheel asm 63 72 All 292 3991408 1 168 teeth 0 679 UNDERPAN EXTENSION SCREW ASSY Flywheel I P 63 72 Ser 10 thru 30 292 exc A T 3714477 1 clutch housing 15 J 63 72 All w P G 292 3933089 1 trans converter I 66 72 All w T H 400 292 3868810 1 trans converter I 69 72 All w T H 350 292 6261092 1 trans converter P GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 712TL 0 643 0 679 I 0 42 I I REV 5 79 A