4 CYLINDER ENGINE 0 253 CUP INSER l PLUG Engine Cylinder Head C0n t 82 86 T 1 8D T 94030184 7 3 90 CUP CYL HD SEAL 22MM DIA PGO 23 3 82 86 T 1 8D T 94026532 5 1 05 CLIP SEAL 12MM DIA PGO 21 7 82 85 T 1 8D T 94029576 2 5 90 CUP SEAL FRT AND RR 45MM DIA PGO 23 6 82 86 T 1 8D 94105293 4 14 10 INSERT EXH VLV SEAT PGO 23 9 T 82 86 T 1 TBD T 94105292 4 14 10 INSERT INT VLV ST PGO 23 8 82 86 T 1 8D T T 94026504 4 1 35 PLUG CYL HD PLT PGD 23 5 0 269 HEAD PRECIHAMBER Engine Cylincler 82 87 T 1 6C T T 14083512 1 384 00 HEAD CYL NCL OIL GAL PLUGS PGO 3 26 84 X 2 5R 1ST DES T 10030838 1 394 00 HEAD CYL IDENT BY INT VLV WITH 3422 DIA SREM AND EXH VLV WITH 3419 DIA STEM PGO 10 57 84 85 X 2 5R 2ND DES 10120966 1 394 00 HEAD CYL IDENT BY INT VLV WITH 3137 DIA STEM AND EXH VLV WITH 3132 DIA STEMALSO XJS I D STAMPED ON FRONT FACE OF BLOCK OR NEAR RIGHT HAND SIDE OF BLOCK PGO 18 102 T T 85 X 2 5R 1ST DES T T T 10038231 1 394 00 HEAD CYL IDENT BY INT VLV WITH 3422 DIA SREM AND EXH VLV WITH 3419 DIA STEM PG 0 18 102 82 86 T 1 8D T T 94257551 1 625 00 HEAD CYL PGO 23 1 T 82 83 X 2 5R 5 T T TT TT 10020699 1 394 00 HEAD CYL PGO 10 57 82 86 T 1 8D T T T 94251770 4 83 00 PRECHAMBER PLUG HOT PGO 23 10 0 283 GUIDE Engine Cylinder Headl 82 86 T 1 8D T T 94029594 8 5T45 GUIDE VLV PGO 23 7 0 289 GASKET GASKET KIT GROMIVIET Engine Cylinder Head 82 86 T 1 6C T 14033458 1 71 75 GASKET KIT CYL HD 82 86 T 1 8D T T T 94238643 1 122 00 GASKET KIT ENG TOP O HAUL 82 83 X 2 5 5 T T T 10104427 1 32TT2O GASKET KIT VLV GRIND 82 85 X 2 5R T T 10104427 1 32 120 GASKET KIT VLV GRIND 82 87 T 1 6C T 359190 1 11 T25 GASKET CYL HD PGO 3 25 82 86 T 1 8D T T T 94235060 1 68 25 GASKET CYL HD PGO 23 27 82 83 X 2 5 5 T T 10101784 1 19 55 GASKET CYL HD PGO 10 60 T 82 85 X 2 5R T T 10101784 1 19 55 GASKET CYL HD PGO 10 60 T 82 86 T 1 8D T T 94217125 1 3 90 GROMMET SEAL FRT PLT PGO 31 13 T 0 293 BOLT DOWEL PIN PLATE P Ll IG S1I UD Engine Cylinder Head NOTE FOR ADDITIONAL STANDARD S ZE PLUGS SEE GROUPS 8 970 8 971 IN THE STANDARD PARTS SECTION 85 86 T 1 8D T T 94139089 4 75 BOLT BRG CAP TO CYI HD T T 82 83 X 2 5 5 TT T 10044566 8 1 45 BOLT CYL HD M11X1 5X100 PL PGO 10 40 T 82 85 X 2 5R 10044566 8 1 45 BOLT CYL HD M11X1T5X1OO PL PGO 10 40 T 82 83 X 2 5R 5 T T 10101702 1 1 185 BOLT CYL HD M11X1 ESX70 POS 9 PGO 10 41 84 X 2 5R T 10101702 1 1 185 BOLT CY D M11X1 5X70 POS 9 PGO 10 4 1 82 86 T 1 8D T T 94217144 10 3 90 BOLT CYL HD TO C BLK PGO 23 28 82 86 T 1 8D T 94217002 2 1 120 DOWEL C BLK TO CYLT HD PGO 21 15 82 83 X 2 5 5 T T T 522780 AR 42 PIN CYL HD DWL 5 16X11 16 PGO 13 20 T TT 82 85 X 2 5R T T T 522780 AR 42 PIN CYL HD DWL 5 16X11 16 PGO 13 20 82 87 T 1 6C T 360541 2 92 PIN CYL HD DWL T 82 86 T 1 8D T 94220893 1 42 75 PLATE CYL HD FRT PGO 31 12 82 86 T 1 8D T T T 94220107 1 6 00 PLUG RR 1 2 CIRCLE 31 3MM PGO 23 21 82 83 X 2 5R 5 T 10016341 4 2 225 PLUG RR 21 66 MM T 82 83 X 2 5R 5 T T 10101701 1 1 70 STUD CYL I IID 111X1T5X7O M10X1T5X1810 9 PL 84 85 X 2 5R 12338010 AR 1 60 STUD CYL HD POS 10 HEX DBL END IVI11X1 5X100 M10 T1 5X18 11 9 STL SAE 4037 PGO 11 80 T T T 0 296 VALVE Intake 82 87 T 1 6C T 14032315 4 24 80 VALVE STD PGO 3 35 T 82 87 T 1 6C T 14032319 4 24 80 VALVE 075 MM OTS T T 82 87 T 1 6C T T TTT T 14032320 4 24 150 VALV E 150 MM O S T 82 87 T 1 6C T T T T T 14032321 4 24 80 VALVE 300 MM 0 S T T 1991 GENERAL MOTORS SERVICE PARTS 0PERA TIONS CHEVROLET 17W 6 91 0 1 0 253 0 296