454 ENGINE 0 616 BEARING UNIT Connecting Rod CONNECTING ROD BEARING UNIT CHART STD 001 U S 002 U S 010 U S 020 U S M 71 3 Sprint 454 347003 3876093 347006 74 5 Sprint 454 347002 347003 347004 347005 347006 0 623 BOLT Connecting Rod Bearing Cap 71 5 Sprint 454 exc Sp H Per 3862720 16 K 24 x 2 S knurled shank 71 Sprint 454 w Sp H Per 3981092 16 7 1 20 x 2 Q knurled shank 0 626 NUT Connecting Rod Bearing Cap Bolt 71 5 Sprint 454 839103A R 24 x 3 thick hex head pkg of 20 71 Sprint 454 w Sp H Per 3942410 16 is 20 x is thick 0 629 PlSTON ASSEMBLY With Pin Refer to Piston Chart for model application PISTON CHART STD 001 0 S 010 0 S 020 0 S 030 O S 71 2 Sprint 454 exc Sp H Per 3993875 353061 71 Sprint w Sp H Per 454 3976013 3976021 3976025 73 Sprint 454 74 5 Sprint 454 340206 340207 340208 0 643 RING UNIT Piston Service Sets Original Equipment Type complete set for one cylinder per container STD 020 0 S 030 0 S 71 2 Sprint 454 3888308 3888309 73 5 Sprint 454 475987 328541 0 646 CRANKSHAFT NOTE 1 When used on A 7T it will be necessary to remove the pilot bearing 71 2 Sprint 454 exc Sp H Per 3993878 1 Note 1 73 5 Sprint 454 336782 1 Note 1 71 Sprint 454 w Sp H Per 3963523 1 Note 1 0 649 BEARING Crankshaft Clutch Pilot 71 5 Sprint 454 3752487 1 bush type gz O D x 0 659 BALANCER PULLEY Crankshaft NOTE Crankshaft harmonic balancer is also referred to as T0rsional damper 71 2 Sprint 454 exc Sp H Per 3963529 1 71 Sprint 454 w Sp H Per 3963530 1 73 Sprint 454 exc A T 3963529 1 73 5 Sprint 454 w A T 330849 1 71 5 Sprint 454 3937787 1 PULLEY 3 groove 71 2 Sprint 454 exc Sp H Per C A C 3955290 1 PULLEY 1 groove 71 Sprint w Sp H Per 454 3955291 1 PULLEY 2 groove 0 662 WASHER Harmonic Balancer and Crankshaft Pulley 71 5 Sprint 454 3864814 1 balancer 0 666 FLYWHEEL With Ring Gear 71 4 Sprint 454 exc A T 3993827 1 GM PARTS DIVISION GENERAL MOTORS CORPORATION SPRINT 57 0 616 0 666 0 34 REV 4 81