0 41 3 BOLT INSULATOR RElNFORCEMENT SCREW ASSY STUD Valve Rocker Cover and Support Also see Group 0 366 54 70 All Blazer 180016 1 V 20 x V 8 900 38 53 All 839083 2 10 INSULATOR rubber Vz l D x V 0 D 54 70 All Blazer 3877670A R 10 REINFORCEMENT 1Vz 0 L Note 1 NOTE 1 Use with Bolt 180016 67 70 All 3 53 5100104 4 14 SCREW ASSY clamping 18 x Va 38 53 All 3835659 2 25 STUD w support 16 24 x 5 z 0 423 GASKET Valve Rocker Cover 38 53 All 3694248 1 1 15 cork thick 38 53 All 3696781 1 1 30 cork V thick 54 62 All 6 cyl 63 4 WD 6 cyl 1st Ser 3708646 1 1 10 c0rk z thick 54 62 All 6 cyl 63 4 WD 6 cyl 1st Ser 3708648 1 1 30 cork V4 thick 55 70 All Blazer 8 cyl exc 396 3933964 2 1 05 63 65 Ser 10 D D G 10 4 cyl 3923468 1 1 00 6 holes 17 O L x 4 wide 63 70 All Blazer 6 cyl 3930912 1 1 10 67 70 All 3 53 5119457 1 1 02 18Vz O L 4 holes 68 70 All 396 3860315 2 95 21 V z 0 L x 6 Vi wide 6 tabs 0 426 ROD RETAlNER SEAT SPR NG Valve Push 38 39 All 838409 12 80 12 4 long 40 53 All 216 3835776 12 1 00 10 long 41 55 All 235 56 62 All 6 cyl 63 4 WD 6 cyl 1st Ser 3836260 12 1 00 1 Wu 0 L 55 70 All Blazer 8 cyl exc 396 3796243A R 1 65 7 z O L blue stripe Note 1 2 NOTE 1 Mayhave one black stripe at each end 63 70 All 292 3788494 12 1 30 1 Wil O L bIack stripe Note 2 63 70 All Blazer 153 194 230 250 3788495 A R 95 9 O L 68 70 All 396 3904377 8 1 00 exhaust 9 ls 0 L Note 3 68 70 All 396 3904376 8 1 00 inlet 8 z O L Note 3 67 70 All 3 53 5128640 9 98 67 70 All 3 53 5150303 9 05 RETAINER rod snap ring 67 70 All 3 53 5108919 9 05 SEAT spring upper 67 70 All 3 53 5123250 9 07 SEAT spring lower 67 70 All 3 53 5108918 9 SPRING 2 orange stripes NOTE 2 Color marked end to be at valve rocker arm NOTE 3 1st design engines will be built prior to 9 1 66 and will be identified on the engine stamp pad by T08 plus the day built 0 429 BALL NUT SCREW STUD Valve Push Rod Adjusting 55 69 All Blazer 8 cyl exc 396 3744340A R 25 dia 63 70 All Blazer exc 8 cyl 3732893A R 25 dia valve rocker arm 68 70 All 396 3899622 16 35 Vu dia valve rocker arm 70 All Blazer 307 350 3959142 16 30 dia valve rocker arm 55 62 All 8 cyl 63 70 All Blazer exc 3 53 396 3744341 16 20 NUT valve rocker arm 24 across the flats X V2 hk 68 70 All 396 3896648 16 20 NUT valve rocker arm hex lk V 20 cad 67 70 All 3 53 5151601 9 05 NUT push rod lock 38 62 All 6 cyl 63 4 WD 6 cyl lst Ser 837385 12 20 SCREW V 20 x 1 2 ball end 55 56 All 8 cyl 3713065 16 25 STUD valve rocker arm ball 003 O S 24 x 2 55 56 All 8 cyl 3719800 16 40 STUD valve rocker arm ball 013 O S 24 x 2 Va 57 62 All 8 cyl 63 70 All Blazer exc 3 53 396 3814692 16 45 STUD valve rocker arm ball 003 O S 24 x 2 Va 2 grooves on shank light blue paint 57 62 All 8 cyl 63 70 All Blazer exc 3 53 396 3815892 16 45 STUD valve rocker arm ball 013 O S 24 x 2 V2 1 groove on shank light blue paint 68 70 All 396 3921912 16 50 STUD valve rocker arm ball 0 439 COVER GUlDE Valve Push Rod 50 62 All 235 it 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATION P A 31 0 41 3 0 439 0 14 REV 6 71