1 307 AND 327 ENGINE ASSEMBLIES I 0 426 ROD Valve Push Con t V V NOTE 2 Color marked end to be at valve rocker arm V 65 72 All Blazer 307 327 3796243 A Fl 7 u 0 L blue stripe Note 1 2 4 i 0 429 BALL NUT T STUD Valve Push Rod Adjusting 65 69 All Blazer 307 327 3959142 A R 70 72 All Blazer 307 3959142 16 dia valve rocker arm 65 72 All Blazer 307 327 3744341 16 NUT valve rocker arm 24 across the flats x thk L I 65 12 All Blazer 307 327 3814692 16 TUD valve rocker arm ball 003 0 5 24 x 2 g 2 grooves on shank V l V light blue paint 65 72 All Blazer 307 327 3815892 16 e STUD valve rocker arm ball 013 0 5 24 x 2 I 1 groove on shank light V blue paint V 0 446 BOLT Valve Push Rod Cover A 65 70 All Blazer 307 327 3814350 A R V w lock washer and seal r 18 x r 0 459 TAPPET Valve or Lifter V 65 72 All Blazer 307 327 5232720 16 4 hydraulic type J 7 0 519 CAMSHAFT NOTE Engine Camshaft Break in Oil Group 1 850 should be used when installing new camshafts 65 72 All Blazer 307 327 3896929 1 standard ldent No 3896930 0 533 BEARING UNIT Camshaft Thrust I V 65 70 All BIa zer 307 327 I 3790531 1 w spacing ring 1 0 D x 1 u I D l 0 539 BEARING Camshaft All Locations 1 thru 5 l T V 65 72 All Blazer 307 327 3723584 front No 1 65 72 All Blazer 307 327 front inter No 2 V 65 72 All Blazer 307 327 3723585 2 rear No 5 65 72 All Blazer 307 327 3723586 2 center No 3 rear inter No 4 V 0 543 I BEARING Camshaft Front Intermediate See Group 0 539 for model A application I 0 546 BEARlNG iCamshaft Center and Rearlntermediate See Group 0 539 for model application V 0 549 BEARING Camshaft Rear See Group 0 539 for model application I I 0 553 I PLUG Camshaft Bearing Hole cup type in cylinder block I 65 70 All Blazer 307 327 3704158 1 2 dia A 71 72 All Blazer 307 3997752 1 rear V 5 0 603 ROD ASSEMBLY Connecting Less Dipper 65 61 All 327 3864881 8 68 72 All Blazer 307 3 27 3916396 8 0 616 I BEARING UNIT Connecting Rod 1 Upper and 1 Lower V Refer to chart for Model Application NOTE See Dealer Price Schedule P A 26 for applicable pricesf i V CONNECTING ROD BEARING UNIT CHART MODEL USAGE STD 001 U S 002 U S 010 U S 020 U S 65 67 All 327 3711828 3715045 V 3715046 3715048 3715047 68 72 All Blazer 307 327 3910555 3910556 V 3910557 3910558 3910559 I 0 623 BOLT Connecting Rod Bearing Cap 85 67 All 327 460405 16 V 68 72 All Blazer 307 327 3916399 16 p 24 x 1 T I 0 626 NUT Connecting Rod Bearing Cap Bolt 65 67 All 327 3815280 16 24 type EA phosphate coated and soaped l I 65 72 All Blazer 307 327 3866766 A R 24 x thick hex nut both ends flat Note 1 t GM PARTS DIVISION GENERAL MOTORS CORPORATl0N CHEVR0LET 7I2TL A REV 5 79 use l 0 426 0 626