Where to find the Casting Code:
- Casting codes for 1955 to 1963 are found on the passengers side of the block.
- Casting codes for from 1964 to 1967 are found on the distributor pad, except the 421's
- Casting codes for from March 1967 on are found on the rear of the block just behind the number 8 cylinder
Casting #
|
Year
|
CID
|
HP
|
Main
|
Notes
|
518037
|
1955
|
287
|
173, 180, 200
|
2
|
|
521560
|
1956
|
316
|
192, 205, 216, 227, 285
|
2
|
|
523293
|
1957
|
347
|
227, 244, 252, 270, 290, 317
|
2
|
|
528456
|
1958
|
370
|
240, 255, 270, 285, 300, 315, 330
|
2
|
|
532000
|
1959
|
389
|
215, 245, 260, 280, 300, 315, 330 345
|
2
|
|
536387
|
1960
|
389
|
215, 230, 235, 281, 283, 303, 318
|
2
|
|
536387
|
1960
|
389
|
333, 348, 363
|
4
|
SD
|
542426
|
1961
|
389
|
SR
|
||
538181
|
1961-62
|
389
|
368, 385
|
4
|
|
538181
|
1961-62
|
421
|
373, 405
|
4
|
SD
|
548913
|
1962
|
421
|
405
|
4
|
SD (late)
|
543680
|
1963
|
389
|
215, 230, 235, 267.-283, 303, 313
|
2
|
|
544988
|
1963
|
421
|
320, 353, 370
|
2
|
|
544988
|
1963
|
421
|
390, 405, 410
|
2
|
SD
|
548211
|
1963
|
326
|
250, 260, 280
|
2
|
|
9773153
|
1964
|
326
|
250, 280
|
2
|
|
9773155
|
1964
|
389
|
215, 230, 235, 267, 283, 303, 306
|
2
|
|
9773156
|
1964
|
326
|
325, 330, 348
|
2
|
|
9773157
|
1964
|
421
|
320, 350, 370
|
2
|
|
9773383
|
1964
|
389
|
2
|
||
9773384
|
1964
|
421
|
2
|
||
9778789
|
1965-66
|
389
|
256, 290, 326, 333, 335, 338, 360
|
2
|
|
9778791
|
1965-66
|
421
|
338, 350, 256, 376
|
2
|
|
9778840
|
1965-66
|
326
|
250, 285
|
2
|
|
9782611
|
1966
|
421
|
338, 350, 256, 376
|
2
|
|
9786133
|
1967
|
400
|
255, 260, 265, 290, 325, 335, 360
|
2&4
|
|
9786135
|
1967
|
428
|
360, 376
|
4
|
|
9786339
|
1967
|
326
|
250, 285
|
2
|
|
9787840
|
1967
|
326
|
2
|
||
9792250
|
1968
|
400
|
2
|
||
9792506
|
1968
|
400
|
335, 360
|
4
|
RA
|
545887
|
1969
|
400
|
4
|
RA5
|
|
546313
|
1969
|
303
|
4
|
RA5 short deck
|
|
9792506
|
1969
|
400
|
4
|
RA4
|
|
9792968
|
1969
|
400
|
375
|
4
|
RA5
|
9790071
|
1968-69
|
400
|
265, 290, 330, 340, 350, 366
|
2&4
|
|
9790079
|
1968-69
|
350
|
265, 320, 325
|
2
|
|
9792968
|
1968-69
|
428
|
360, 370, 375, 390
|
2&4
|
|
481708
|
1970
|
400
|
4
|
RA5
|
|
9799140
|
1970
|
455
|
360, 370
|
2
|
|
9799914
|
1970
|
400
|
265, 290, 330, 350
|
2
|
|
9799914
|
1970
|
400
|
345, 366
|
4
|
RA3
|
9799915
|
1970
|
400
|
370
|
4
|
RA4
|
9799916
|
1970
|
350
|
255
|
2
|
|
481990
|
1971-72
|
350
|
175, 250
|
2
|
|
483677
|
1971-72
|
455
|
200, 250, 280, 325
|
2
|
|
483677
|
1971-72
|
455
|
300, 335
|
2&4
|
HO
|
481988
|
1971-74
|
400
|
200, 250, 265, 300
|
2
|
|
485428
|
1971-74
|
455
|
200, 215, 250, 265, 300
|
2&4
|
|
485212
|
1972
|
366
|
4
|
||
487638
|
1972
|
455
|
2
|
||
493482
|
1973
|
455
|
2
|
||
490132
|
1973-74
|
455
|
290
|
4
|
SD
|
488986
|
1973-76
|
350
|
150, 155, 170, 175
|
2
|
|
488986
|
1975
|
400
|
2
|
early
|
|
500557
|
1975
|
400
|
2
|
late
|
|
500810
|
1975
|
350
|
2
|
late
|
|
500813
|
1975-76
|
455
|
2
|
||
525934
|
1977
|
301
|
135
|
2
|
|
568557
|
1977-79
|
400
|
180, 200, 220
|
2
|
|
Engine Block Casting Codes
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