55 56 ALL 265 Ident No 3720991 3734105 1 2 292 65 55 61 ALL 283 exc 1 ton L D Ident No 3789935 or 3794226 3829289 oC l 1 310 00 NOTE When using on 1957 models it is mandatory to use 2 1960 cyl head gaskets 3830711 to effectively seal the 4 additional water holes in the block to prevent V coolant leakage oNOTE When using on 1957 Ser 5 7000 models also use 1 3752317 oil level gauge tube assy to provide clearance with engine mounting boss INOTE When using on 1955 and 1956 models it will be necessary to use 3799644 Hydraulic Tappets 3794060 Oil Pan and 3722959 Oil Level I S7 59 Ser 4 8 cyl 59 Ser 6 w L D 283 60 61 Ser 40 283 62 Ser 40 50 283 Ident No 3849852 3816619 1 1 292 65 60 63 Ser 60 TILT 261 3774588 1 285 50 62 65 ALL 327 3862129 1 331 00 63 65 ALL 283 Ident No 3864812 385064512 1 292 65 INOTE May contain a nodular iron type crankshaft with Ident No 3849847 When equipped with nodular crank it is necessary to install a harmonic balancer on vehicles which do not have an existing balancer On models equipped with Powerglide it will be necessary to remove clutch pilot bearing from crankshaft 63 65 ALL 230 Ident No 3850817 3855989 1 266 70 63 66 Ser 50 60 292 Ident No 3851659 3881521 1 289 50 58 65 ALL 348 Ident No 3857655 3862l31A 1 385 00 62 65 ALL 409 Ident No 3857656 3862132 1 392 50 65 ALL 351 exc TILT 24648640 1 940 00 65 ALL 478 exc TDM 65 Ser 80 TDM 478 24648660 1 980 00 65 66 Ser 50 159 5196490l 1 317 10 66 Ser 50 283 3890125 1 292 65 66 Ser 60 327 3893609 1 331 00 66 Ser 50 250 3890012 1 286 75 66 ALL 366 3890015 1 318 50 66 ALL 478 24861590 1 FITTED CYLINDER BLGCK includes pistons pins rinqs und beurinqs 55 62 ALL 235 Ident No 3764476 3764752 l 143 00 55 62 ALL 261 Ident No 3769925 3774587 1 160 00 J 55 56 ALL 265 Ident No 3720991 373413611 1 159 55 56 59 ALL 322 Ident No 1169334 3752376 1 248 00 57 59 ALL 283 exc L D 60 61 Ser 60 283 65 66 Ser 50 TILT 283 3867801 1 180 50 57 59 Ser 4 283 59 Ser 6 w L D 283 63 66 Ser 50 283 exc TILT Ident No 3849852 3865234 1 159 55 58 65 ALL 348 Ident No 3857655 3860387 A 1 207 50 62 66 ALL 327 3862130 l 192 75 62 65 ALL 409 Ident N0 3857656 3860386 1 237 50 62 66 Ser 60 212 51964916 Bl 1 365 13 62 66 Ser 80 318 5196821 1 675 16 63 65 Ser S0 230 3855991 1 141 35 63 66 Ser 50 60 292 Ident No 3851859 3855987 1 163 50 65 66 ALL 351 24648520 1 465 00 65 66 ALL 478 24648530 1 490 00 66 Ser 50 250 3890013 1 154 00 66 ALL 366 3890016 1 199 75 UNIT Conversion 55 Ser 4 5 6 265 37650041 1 27 05 TNOTE Required when installing 1956 V 8 partial engines and fitted block in 1955 Truck models having FIVE QUART OIL PAN NOTE Remove pilot bearing from crankshaft before installing on Powermatic NOTE When using on early 1958 des ign models without spark plug cooling it will be necessary to use 2 3814003 Cylinder Head Gaskets 2 3815856 Cylinder Heads 8 5612235 Spark Plugs l 3756628 Tube Assy 1 3774029 Stud 1 120376 Nut and 1 138485 Lockwasher used to attach exhaust manifold and oil level gauge I ube Assy TTNOTE 1955 model initial installation requires conversion kit 3765004 as shown ANOTE Cvl head gasket 3814003 must be used with this block GBNOTE Does not include pistons pins rings or bearings other than camshaft bearing DNOTE May contain Nodular Iron type crankshaft It is necessary to install a harmonic balancer on vehicles which do not have an existing balancer 19 0 033 78 Chevrolet Motor Divisigg HDT General Motors Corporation REVISED MAY 1 1966