250 ENGINE ASSEMBLY 0 426 ROD ASSY i 71 72 All 3788495 12 9 0 L 0 429 STUD BALL NUT Valve Push Rod Adjusting 71 72 All 3814692 A R rocker arm ball 003 0 S 24 x KT 2 Z blue paint 71 72 All 3815892 A R rocker arm ball 013 O S 24 x 2 orange paint 71 72 All 3992294 12 BALL dla 71 72 All 3744341 A R NUT arm adj 24 0 439 COVER Valve Push Rod and Cylinder Block 71 72 All 3788496 2 0 443 GASKEET Valve Push Rod and Cylinder Block Cover 71 72 All 3920938 2 I 0 446 BOLT Valve Push Rod Cover r 71 72 All 3814350 6 w seal 18 x I 0 459 TAPPET Valve 71 72 All 5232450 12 hydraulic type 0 519 CAMSl IAFT 71 72 All 3864497 1 I 0 533 BEARING UNIT Camshaft Thnrust i 71 72 All 3790531 1 w spacing ring 1 0 D x 1 az I D 0 539 BEARING Camshaft No 1 Front 71 72 All 3750884 1 stamped 3750884 0 543 0 543 BEARING Camshaft No 2 Front Intermediate I 71 72 All 3750884 1 stamped 3750884 I 0 546 BEARING Camshaft Center or Rear Intermediate 71 72 All 3750884 2 stamped 3750884 r 0 549 BEARING Camshaft Rear 71 72 All 3750884 1 stamped 375088 4 0 543 0 553 PLUG Camshaft Bearing Hole in cylinder block 71 72 All 3704158 1 rear steel 2 dia x thk i S 0 603 ROD ASSEMBLY Connecting 71 72 All 3977110 6 i 0 616 BEARING UNIT Connecting Rod NOTE See Dealer Price Schedule P A 26 for applicable prices I CONNECTING ROD BEARING UNIT CHART l STD 001 U S 002 U S 010 U S l 020 UQS 71 72 All 347118 347119 3715046 3715048 3715047 0 623 BOLT Connecting Rod Bearing Ca p a I 71 72 All 460405 12 2 24 x 1 0 626 NUT Connecting Rod Bearingr Cap Bolt 71 72 AII 3866766A R 24 x thick hex head 71 72 All 3815280 12 24 Type EA fi I i GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 72TM REV 5 79 A 0 rs1 l 0 426 0 626