6 CYLINDER ENGINE 0 309 CAP SEAT Engine Valve Spring 87 89 L 2 8W 14094168 12 1 20 CAP VLV SPR PGO 46 28 90 92 L 3 1T LHO 14094168 12 1 20 CAP VLV SPR PGO 46 28 87 89 L 2 8W 14091809 12 1 15 SEAT VLV SPR PGO 46 25 90 92 L 3 1T LHO 14091809 12 1 15 SEAT VLV SPR PGO 46 25 0 310 KEY Engine Valve Spring 87 89 L 2 8W 360505 24 29 KEY VLV STEM PGO 7 25 90 92 L 3 1T LHO 360505 AR 29 KEY VLV STEM PGO 7 25 0 333 ARM KIT Engine Valve Rocker 87 89 L 2 8W 10054525 12 6 15 ARM KIT VLV RKR W BALL PGO 46 19 90 92 L 3 1T LHO 10054525 12 6 15 ARM KIT VLV RKR W BALL PGO 46 19 0 353 BOLT Valve Rocker Arm 92 L 3 1T LHO 11509669 AR 19 BOLT CM SHF RR CVR HEX W CON WA M6X1X13 1O THD 12 5 OD HDR PT 9 8 ZP 08 900 0 386 COVER Engine Valve Rocker Arm 87 89 L 2 8W 10051564 RH 31 50 COVER VLV RKR ARM PGO 52 37 87 89 L 2 8W 10191701 LH 31 50 COVER VLV RKR ARM 00 439 PGO 46 10 90 92 L 3 1T LHO 10051564 RH 31 50 COVER VLV RKR ARM PGO 52 37 90 92 L 3 1T LHO 10191701 LH 31 50 COVER VLV RKR ARM 00 439 PGO 46 10 0 413 BOLT GROMMET Engine Valve Rocker Arm Cover 87 89 L 2 8W 10151648 8 3 80 BOLT VLV RKR ARM CVR 00 386 PGO 46 12 90 92 L 3 1T LHO 10151648 8 3 80 BOLT VLV RKR ARM CVR M6X1 12 THD 8X15 SHLDR 12 7 OD 9 8 PO 00 386 PGO 46 12 87 89 L 2 8W 12338036 8 98 GROMMET VLV RKR ARM CVR BOLT PGO 53 105 90 92 L 3 1T LHO 12338036 8 98 GROMMET VLV RKR ARM CVR BOLT 4 PGO 53 105 0 423 GASKET Engine Valve Rocker Arm Cover 87 89 L 2 8W 14092297 2 N L GASKET VLV RKR ARM CVR PGO 46 9 90 92 L 3 1T LHO 14092297 2 N L GASKET VLV RKR ARM CVR PGO 46 9 0 426 ROD Engine Valve Push I 87 89 L 2 8W 14102521 6 3 70 ROD EXH VLV PUSH PGO 46 23 87 89 L 2 8W 14102522 6 3 70 ROD INT VLV PUSH PGO 52 29 90 92 L 3 1T LHO 14102521 6 3 70 ROD VLV PUSH EXH PGO 46 23 90 92 L 3 1T LHO 14102522 6 3 70 ROD VLV PUSH INT PGO 52 29 0 429 NUT STUD Engine Valve Adjusting NOTE 7 WHEN RE CONDITIONING A VLV SEAT ON ALUMINUM CYL HEADS IT WILL BE NECESSARY TO REMOVE NON ADJUSTABLE RKR ARM BALL STUD NUT AND REPL WITH ADJUSTABLE STUD NUT TURNDOWN VLV RKR ARM NUT UNTIL THERE IS NO FREE AXIAL MOVEMENT OF PUSHROD THEN TURN ADJ NUT 1 2 TURN MORE NOTE CONTINUES AT 1A NOTE 1A AT NO TIME SHOULD THERE BE LESS THAN 4MM OF VLV SEAT MATERIAL REMAINING AFTER RE CONDITIONING 87 89 L 2 8W 477212 12 88 NUT VLV RKR ARM ADJUSTABLE HEX PREV TORO ALL METAL 10X1 0X11 2 601M CD REFER TO NOTE 1 IN CATALOG TEXT 87 89 L 2 8W 14102542 12 86 NUT VLV RKR ARM NON ADJUSTABLE REFER TO NOTE 1 IN CATALOG TEXT PGO 46 18 90 91 L 3 1T LHO 477212 12 88 NUT VLV RKR ARM ADJUSTABLE REFER TO NOTE 1 IN CATALOG TEXT HEX PREV TORO ALL METAL 10X1 0X11 2 301M CD 90 92 L 3 1T LHO 14102542 12 86 NUT VLV RKR ARM NON ADJUSTABLE REFER TO NOTE 1 IN CATALOG TEXT FLANGED HEAD 13MM HEX M8X1 0 6H THREAD PGO 46 18 87 89 L 2 8W 476530 12 1 40 STUD VLV RKR ARM BALL ADJUSTABLE M10X1 5X9 9 M10X1X18 REFER TO NOTE 1 IN CATALOG TEXT 1992 GENERAL MOTORS SERVICE PARTS 0PERAT 0NS CHEVROLET 17L 17 0 309 0 429 0 28 1 92