0 l53 SHIM UNIT Crankshaft Bearing Cap Ser 10 thru 60 283 rear 2 O L 3759262 A R Ser 10 thru 60 6 cyl front 030 thicl laminated 3703648 A R Ser 10 thru 60 283 front and intermediate 3740716 A R Ser 10 thru 60 6 cyl intermed 030 thick laminated 3703650 A R Ser 10 thru 60 6 cyl rear 030 thick laminated 3703652 A R Ser 70 80 348 rear 3754482 A R Ser 70 80 348 front and intermediate 3754481 A R NOTE Previously released 0 206 COVER I 0CK PIN BOLT ASSY Crankcase Front End Ser 10 thru 60 6 cyl w oil seal 838869 1 Ser 10 thru 60 283 w oil seal 12 attach holes 3704124 1 Ser 70 80 348 w oil seal 3736357 1 Ser 10 thru 60 6 cyl LOCK front cover bolt 3835842 1 Ser 10 thru B0 8 cyl PIN dowel x 3836903 0 738 2 Ser 10 thru 60 6 cyl BOLT ASSY w washer cover attach g 2O xr 3770309 2 NOTE previously released 0 207 GASKET Crankcase Front End Cover Ser 10 thru 60 6 cyl 12 attach holes 838206 1 Ser 10 thru 60 283 10 attach 2 dowel holes 3704210 1 Ser 70 80 348 12 holes 1 thick 3736359 1 NOTE Previously released 0 2l3 SEAL Crankcase Front End Cover Ser 10 thru 80 2 O D stamped 3835946 3835946 l NOTE Previously released 0 253 SEAT Exhaust Valve Ser 70 80 348 std 1 high 3764703 8 Ser 70 80 348 010 oversize 1 high 3764982 8 Ser 70 80 348 030 oversize 1 high 3767315 8 NOTE Previously released 0 269 HEAD ASSY HEAD UNIT Cylinder Ser 10 thru 50 8 cyl exc D D Van cast 3767460 3772666 2 Ser 60 8 cyl 3772667 2 Ser 70 80 w valve rocker studs 3765192 2 Ser 10 thru 50 6 cyl HEAD UNIT consists of valve guides seats and temp gauge reducing bushing cast 3836850 3730415 1 Ser 60 261 HEAD UNIT consists of valve guides seats and temp gauge reducing bushing cast 3836850 3730416 1 NOTE Previously released 0 283 GUIDE Inlet and Exhaust Valve Stem Ser 10 thru 60 6 cyl inlet 1 1 D x O D 3708168 6 Ser 10 thru 60 6 cy1 exhaust 2 length straight sides 3688761 6 NOTE Previously released 0 289 GASKET UNIT GASKET Cylinder Head Ser 10 thru 50 6 cyl 3709428 1 Ser 10 thru 50 283 3770630 1 Ser 60 6 cyl 3764410 1 Ser 60 283 3770631 1 Ser 70 80 348 3760516 1 Ser 10 thru 60 283 GASKET 19 3758440 1 Ser 10 thru 50 6 cyl GASKET 3701296 1 Ser 60 6 cyl GASKET 27 O L 3760990 1 Ser 70 80 348 GASKET 202 3758383 1 NOTE Previously released 9 333gt Motor Division Gonoral Motors Corporation TRUCK MODEL CATALOG