350 ENGINE ASSEMBLY 0 629 PISTON with Pin Con t 74 Camaro 350 w Sp H Per 336754 A R 54 25 PISTON std 0 643 RING KIT Piston Service Sets 7 Single cylinder replacement only 67 75 All 350 328506 A R N L RING KIT std Note 1 67 75 All 350 328516 A R 11 95 RING KIT 030 0 5 Note 1 0 646 CRANKSHAFT Engine NOTE 1 When used on A 7Z it will be necessary to remove the pilot bearing 69 75 All 350 exc Sp H Per 3932444 1 265 00 Note 1 70 74 All w Sp H Per 350 3941184 1 320 00 CRANKSHAFT Note 1 0 649 BEARING Crankshaft Clutch Pilot 67 75 All 350 3752487 1 N L BEARING bush type gz I D x 13 az O D X 3 4H 0 659 DAMPER BALANCER PULLEY Crankshaft NOTE ln some cases double groove pulleys may be used in place of single groove pulleys NOTE Crankshaft harmonic ba ancer is also referred to as torsiona damper 69 75 All 350 exc Sp H Per 6272221 1 43 75 torsional 69 70 All w 4BC 350 exc H Per Sp H Per 6272222 1 43 75 torsional 70 74 All Sp H Per 350 6272224 1 73 75 DAMPER torsional 67 68 Camaro 350 3896966 1 43 75 BALANCER w o pulley 8 0 D 67 68 Camaro 350 exc C A C C Deluxe Air Cond A l R 3755820 1 12 90 PULLEY stamped 3755820 67 Camaro 350 exc C A C 3744043 1 13 60 PULLEY double 65 E 0 D painted black stamped 3744043 67 68 Camaro w P S 350 3751232 1 12 90 PULLEY front stamped 3751232 67 68 Camaro w Air Cond 350 3850838 1 14 80 PULLEY 7 M 0 D 70 Pass Nova w Acc Air Cond 350 3937787 1 21 35 PULLEY 3 groove Note 1 67 68 All 350 exc C A C P S Sp H Per 69 72 All 350 exc C A C Sp H Per 73 75 All 350 exc C A C Sp H Per 63 amp Taxi Police 3956666 1 15 20 PULLEY 2 groove 70 72 All w Sp H Per 350 73 74 Camaro w Sp H Per 350 exc C A C 3956668 1 15 20 PULLEY cr shaft 2 groove 69 All w Air Cond 350 70 Pass Nova Chevelle w Acc Air Cond 350 70 72 All w C A C 350 73 75 All w 63 amp 350 73 75 Taxi Police 350 exc C A C 73 75 All w C A C 350 exc Sp H Per 3972180 1 26 50 PULLEY 3 groove stamped 3972180 73 74 All Sp H Per w C A C 350 329273 1 16 00 PULLEY 3 groove 75 Monza w C A C 350 360453 1 14 00 PULLEY 0 662 BOLT WASHER REINFORCEMENT Harmonic Balancer and Crankshaft Pulley 67 68 Camaro 350 3815933 1 1 20 BOLT m 20 x 2 67 75 All 350 3739422 1 79 WASHER balancer Z9 st I D x 1 O D x m thk 0 666 FLYWHEEL Engine Crankshaft NOTE 1 On some application 366763 and 3937736 are used optionally in production These parts can be identified by their bolt hole mounting patterns 3991401 contains a single bolt hole mounting pattern 1 1 A in dia 3937736 contains two staggered bolt hole mounting patterns The inner pattern 10 in dia the outer 1 7 A in dia 67 69 All w P G reg fuel 350 3789821 1 44 25 spoke type 6 2 dia holes around ctr 69 Pass w reg fuel 350 exc A T Police 366860 1 104 00 solid type cast 3791021 67 69 Camaro Chevy 350 exc A T 69 Pass 350 exc reg fuel Sp H Per A T 70 All w 4BC 350 exc Sp H Per A T GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 11 0 629 0 666 0 74 REV 4 81