8 CYLINDER ENGINE 0 636 PIN Engine IPisst0n Wrist 77 81 ALL 301W Y 500011 8 5 85 PIN PSTN 001 O S 4 77 81 ALL 301W Y 500012 8 5 85 PIN PSTN 003 0 5 80 81 ALL 4 35 500011 8 5 85 PIN PSTN 0O1 0 5 80 81 ALL 4 3S 500012 8 5 85 PIN PSTN 003 O S 4 0 639 RETAI IER Piston Pin NOTE 1 Flat retainer with square cut outer edge to be used on pistons with square cut retainer groove NOTE 2 Round wire retainer to be used on pistons with round cut retainer groove 80 81 ALL 350N 560601 16 85 RETAINER PSTN PIN NOTE 1 80 81 B 350N 22519418 16 33 RETAINER PSTN PIN NOTE 2 81 A 350N 22519418 16 33 RETAINER PSTN PIN NOTE 2 0 643 RING KIT Engine Piston 76 77 A F G 350P 489075 8 21 15 RING KIT STD 76 78 ALL 260 231945 8 18 05 RING KIT STD 76 78 ALL 260 231946 8 18 70 RING KIT 010 O S 76 78 ALL 260 231947 8 18 70 RING KIT 030 0 S 76 79 ALL 400 489139 8 21 70 RING KIT STD 76 79 ALL 400 489140 8 21 70 RING KIT 010 0 S 76 79 ALL 400 489141 8 21 70 RING KIT 030 0 S 76 ALL 455 491212 8 30 75 RING KIT STD 76 X 350H J 25519462 8 RING KIT STD 76 X 350H J 1240960 8 16 75 RING KIT 010 O S 76 X 350H J 25519464 8 RING KIT 030 O S 77 79 ALL 301 547027 8 17 45 RING KIT STD 77 79 ALL 301 547028 8 18 15 RING KIT 010 O S 77 79 ALL 301 547029 8 18 15 RING KIT O30 0 S 77 81 ALL 305 370409 8 N L RING KIT STD 77 81 ALL 305 370419 8 15 75 RING KIT 030 O S 77 79 ALL 350L 14 089027 8 N L RING KIT STD 77 79 ALL 350L 14089027 8 N L RING KIT 030 0 5 77 80 ALL 350R 231419 8 20 35 RING KIT STD 77 80 ALL 350R 231420 8 20 35 RING KIT 010 O S 77 80 ALL 350R 231428 8 20 35 RING KIT 030 0 S 77 79 ALL 403 556291 8 19 90 RING KIT STD 77 79 ALL 403 556293 8 20 65 RING KIT 020 0 S 78 80 ALL 350X 25519462 8 RING KIT STD 78 80 ALL 350X 1240960 8 16 75 RING KIT 010 O S 78 80 ALL 350X 25519464 8 RING KIT 030 0 S 80 ALL 301 10016047 8 7 45 RING KIT STD 80 ALL 301 10016048 8 18 15 RING KIT 010 O S 80 ALL 301 10016049 8 18 15 RING KIT 030 0 S 80 81 ALL 350N 22515962 8 221 90 RING KIT 030 0 S 80 81 ALL 350N 22515963 8 221 90 RING KIT 010 O S 80 81 ALL 350N 22523733 8 N L RING KIT STD 80 81 ALL 4 35 10013130 8 17 30 RING KIT STD 80 81 ALL 4 3S 10013132 8 17 30 RING KIT 030 0 S 80 ALL 4 9T 10016063 8 18 20 RING KIT STD 80 ALL 4 9T 10016064 8 18 85 RING KIT 010 0 S 80 ALL 4 9T 10016065 8 18 85 RING KIT 030 0 S 81 A B 260F 231945 8 18 05 RING KIT STD 81 A B 260F 231946 8 18 70 RING KIT 010 O S 81 A F 267 474196 8 15 70 RING KIT STD 81 A F 267 474197 8 15 10 RING KIT 030 0 S 81 A B F 301W 10016047 8 17 45 RING KIT STD 81 A B F 301W 10016048 8 18 15 RING KIT 010 0 S 81 A B F 301W 10016049 8 18 15 RING KIT 030 0 S 81 B 307 22506537 8 18 15 RING KIT 010 U S 81 B 307 22529564 8 RING KIT O30 0 S 81 B 307 22529562 8 N l RING KIT STD 81 F 4 9T 10016063 8 18 20 RING KIT STD 81 F 4 9T 1 016064 8 113 85 RING KIT 010 0 S 81 F 4 9T 1 016065 8 18 85 RING KIT 030 0 S 0 646 CRANKSHAFT Engine NOTE When crankshafts with 3 Q 16 tapped holes for harmonic balancer are substituted for crankshaft with 5 18 tapped holes use 271629 bolt and 1 194944 washers 76 78 ALL 260 231929 1 425 00 CRANKSHAFT 76 79 ALL 400 499864 1 459 00 CRANKSHAFT 76 X 350 1235419 1 390 00 CRANKSHAFT 77 81 ALL 301W Y 10000590 1 425 00 CRANKSHAFT 77 81 ALL 305 361982 1 425 00 CRANKSHAFT 77 79 ALL 35OL 23932444 1 425 00 CRANKSHAFT 1987 GENERAL IVIOTORS SERVICE PAFITS OPERATIONS PONTIAC 21 j REV 7 87 0 5 7 0 636 0 646