0 030 CYLINDER UNIT GASKET LINER SEAL Engine 62 64 Diesel 1st design 5196834A R 50 79 replacement 17 to 1 comp ratio Note 1 NOTE 1 Consists of cyl liner piston assy w bushing piston pin and ring oil control rings and expander piston pin retainer upr and lwr cyl ring seal 64 67 All 3 53 4 53 6V 53 2nd design 5198899A R 55 54 replacement 21 to 1 comp ratio 62 69 All 3 53 4 53 6V 53 5116357 A R 09 GASKET cyl and case water hole 1 I D 2 holes W iygzn 62 69 All 3 53 4 53 6V 53 5121254A R 97 GASKET cyl head compression 4 V 4 l D 62 68 All 3 53 4 53 6V 53 5121251 A R 17 05 LINER cylinder 9 z 0 L x 4 Vsz O D 69 All 4 53 5132803 4 17 39 LINER cylinder 9 z 0 L x 4 z O D 62 69 All 3 53 4 53 6V 53 5121256 A R 76 SEAL cyl liner upr 4Vz D red color 0 033 BLOCK ASSEMBLY Cylinder PARTIAL ENGINE 54 55 All 235 3709607 1 362 80 cast 3835911 or 3733949 54 All 261 1st Ser 3707737 1 371 25 cast 3703414 or 3733950 55 62 All 235 3775149 1 349 55 cast 3764476 55 62 All 261 exc Tilt 3774589 1 380 00 cast 3769925 Note 1 NOTE 1 A plug above the oil filter inlet hole must be driven in so it is 63 below surface of boss when a full flow oil filter is to be used 55 56 All 265 3734105 2 376 55 cast 3720991 Note 2 4 55 61 All 283 exc 1 Ton L D 3970170 1 391 95 Note 2 17 57 59 Ser 4 8 cyl 59 Ser 6 w L D 283 60 61 Ser 40 283 62 Ser 40 50 283 3816619 1 376 55 cast 3849852 Note 2 7 60 63 Ser 60 Tilt 261 3774588 1 351 90 62 67 All 327 3937295 1 415 80 63 66 All 283 67 All 283 exc Tilt 3937910 1 376 55 Note 2 63 65 All 230 3930966 1 364 65 Note 15 16 NOTE 15 When using on models prior to 1968 it will be necessary to use 1968 oil pan Gasket unit NOTE 16 1967 engines with date stamped FO619 thru end of production incorporate 1968 parts as follows Crankshaft rear bearing oil seal rear bearing cap oil pan gasket Refer to parts in g 63 70 All 292 exc L P Gas 3930975 1 395 40 Note 2 8 10 18 NOTE 18 When using for replacement on 1966 and prior models discard the original and replace with the following parts A Synchromesh Trans Models 1 3910364 Flywheel Assy 6 3910367 Flywheel attachment bolt 3 3886062 Flywheel Dowel Pin B Powerglide Trans Models 1 3910365 Flywheel Assy 6 3910368 Flywheel attachment Bolt 3 3886062 Flywheel Dowel Pin 1 3914063 Trans Conv Assy 6 454955 Trans Conv Attach Bolt 6 3693853 Trans Conv Attach Washer 6 39161 12 Trans Conv Attach Nut C Turbo Hydramatic Trans Models 1 3910369 Flywheel Assy 6 3910368 Flywheel Attach Bolt 3 3886062 Flywheel Dowel Pin In addition to the above when using as a replacement on 1963 models the following rework is also required A Replace the carb throttle body part number 7021953 with part number 7027798 B Replace the main metering jet part number 7008673 with part number 7008672 62 66 Ser 80 6V 53 5128025 1 58 31 engine frt upper 58 65 All 348 3862131 1 499 25 cast 3857655 Note 3 5 62 65 All 409 3862132 1 508 80 cast 3857656 65 66 All D351 exc Tilt 2486154 1 1145 00 65 All D DH478 exc TDM 65 Ser 80 TDM D DH478 66 69 All D DH478 2486159 1 1215 00 65 67 All 3 53 5196490 1 347 33 66 Ser 50 250 67 Ser 40 250 68 70 All 250 exc L P Gas 3991066 1 349 00 Note 8 66 70 All 366 exc L P Gas 3981816 1 508 00 See Note 11 13 68 70 All 427 3981823 1 528 40 See Note 11 68 All 307 3933042 1 363 85 68 All 327 3970656 1 419 75 Note 2 69 70 Ser 40 50 350 exc L P Gas 3970659 1 446 00 69 70 Ser 40 w L P Gas 350 3970658 1 446 00 FITTED CYLINDER BLOCK includes pistons pins rings and bearings 55 62 All 235 3764752 1 179 70 cast 3764476 55 62 All 261 3774587 1 197 15 cast 3769925 57 59 All 283 exc L D 60 61 Ser 60 283 65 66 Ser 50 Tilt 283 67 Ser 40 Tilt 283 3912264 1 222 50 57 59 Ser 4 283 1971 CHEVROLET MOTOR DIVISION GENERAL MOTORS CORPORATl0N P A 31S REV 6 71 0 7 0 030 0 033