i think if u look on the front of the engine, it will tell you the year, and i think on the back it will say 4 40
that what it shows on mine

 

Hey piratemike your block is a 440 year 1966-1972 from your # and the heads are a 400/440 1973 with 2.08 int - 1.74 exh and your trans # does not show up so you need to look for one of these numbers
Casting NumberYearsApplicationMaterial2128351 10-1/2" clutch 3-spd 1960-1963B-body Fullsize 361 383 2128481 10-1/2" clutch 3-spd 1962B-body 361 383 2182351 10-1/2" clutch A-833 1962-1964B-body 361 383 413 2206044 A-833 1964B-body 426 III "STEEL" 2264629 10" clutch 3-spd 1962B-body 318 2402218 10-1/2" clutch T-85 3-spd 1962-1963B-body 413 Stage-I 426 Stage-II Aluminum 2402219 10-1/2" clutch 3-spd 1963B-body 426 Stage-II Aluminum 2402221 10-1/2" clutch 3-spd 1963B-body 426 W/T85 Aluminum 2402681 10-1/2" clutch 3-spd 1963-1964B-body 361 383 Cast Iron 2402683 10-1/2" clutch 3-spd 1963-1964B-body 361 383 Cast Iron 2402690 LA 3spd A-903/A-745 1964-1966 2402690 G/RG 3spd A-903/A-745 1964 2402696 10" clutch 3-spd 1963-1964B-body 318 Cast Iron 2402698 10" clutch 3-spd 1963-1964B-body 318 Cast Iron 2406042 10-1/2" clutch A-833 1964B-body 426 III "STEEL" 2406043 10-1/2" clutch A-833 1964B-body 426 III "STEEL" 2406044 ** Bellhousing inspection pan 1964-1965B-body 426 HEMI 2406045 ** Bellhousing inspection pan 1964-1965B-body 426 HEMI, 426 Stage-III 2406292 10-1/2" clutch A-833 1963B-body 361 383 2406293 10-1/2" clutch A-833 1963B-body 361 383 2406343 10" clutch 3-spd 1963B-body 318 246524? LA A-833 1964-1966A-body 2455524 LA A-833 1964-1966 2463017 11" clutch A-833 1964B-body 361 383 413 426 Cast Iron 2463019 11" clutch A-833 1964B-body 361 383 413 426 Cast Iron 2463025 G/RG A-833 1964A-body Cast Iron 2463027 G/RG A-833 21x63 1964A-body Cast Iron 2463235 10-1/2" clutch A-833 1964-1965B-body 426 HEMI "STEEL" 2463235 A-833 1964-1965413-426 2463236 10-1/2" clutch A-833 1964-1965B-body 426 HEMI "STEEL" 2463411 9-1/2" clutch A-745/A-903 1964-1966A-body 273 2463411 9-1/2" clutch A-745/A-903 1964-1966A-body 273 2463413 9-1/2" clutch 3-spd 1964-1966A-body 273 2465523 LA A-833 1964-1966 2465523 9-1/2" clutch A-833 1964-1966A-body B-body 273 2465524 9-1/2" clutch A-833 1964-1966A-body B-body 273 2466224 10-1/2" clutch 3-spd 1965B-body C-body 318 2468222 10-1/2" clutch 3-spd 1965B-body C-body 318 2468370 10-1/2" clutch A-833 1965B-body C-body 361 383 413 426 2468370 10-1/2" clutch A-833 1966B-body C-body 361 383 2468372 10-1/2" clutch A-833 1965B-body C-body 361 383 413 426 2468372 10-1/2" clutch A-833 1966B-body C-body 361 383 2468431 G/RG A-833 1965-1966 Cast Iron 2468448 10-1/2" clutch 3-spd 1965B-body C-body 361 383 Cast Iron 2468450 10-1/2" clutch 3-spd 1965B-body C-body 361 383 Cast Iron 2468479 G/RG A-903/A-745 1965-1966 2468481 G/RG A-903/A-745 1966 Aluminum 2468482 10-1/2" clutch 3-spd 1965B-body 273 2536106 10-1/2" clutch A-833 1965B-body 426 Aluminum 2536938 10-1/2" clutch 3-spd 1966B-body C-body . 318 2536940 10-1/2" clutch 3-spd 1966-1968B-body C-body 273 318 2536941 10-1/2" clutch 3-spd 1966-1968B-body C-body 273 318 2536943 10-1/2" clutch 3-spd 1966-1967B-body C-body 383 2536945 10-1/2" clutch A-833 1966-1969A-body B-body C-body 361 383 440 Cast Iron 2536945 B/RB A-833 1967-1969A-body 2658955 G/RG A-903/A-745 3spd 1967-1972Some 75-1976 2658955 RG 3spd 1971 2692259 11" clutch A-833 1968-1969B-body 426 HEMI Cast Iron 2780510 11" clutch A-833 1966-1967B-body 426 HEMI Cast Iron 2780512 11" clutch A-833 1966-1967B-body 426 HEMI Cast Iron 2780900 9-1/2" clutch A-903 1967-1968A-body 273 318 Cast Iron 2780902 9-1/2" clutch A-903 1967-1968A-body 273 318 Cast Iron 2806081 9-1/2" clutch A-833 1967-1968A-body 273 Cast Iron 2806083 9-1/2" clutch A-833 1967-1968A-body 273 Cast Iron 2806083 9-1/2" clutch A-833 1967-1968A-body 273 Cast Iron 2806718 G/RG A-833 1967-1972export only 2843234 11" clutch A-833 1967B-body C-body 440 Cast Iron 2843235 11" clutch A-833 1967B-body C-body 440 Cast Iron 2843925 11" clutch 3-spd 1968C-body 383 Cast Iron 2892257 11" clutch A-833 1968-1969B-body 426 HEMI Cast Iron 2892260 11" clutch A-833 1968B-body C-body 383 440 2892262 11" clutch A-833 1968B-body C-body 383 440 4.80" IBR (cast dates include 9/5/67 10/20/67) Cast Iron 2892480 10-1/2" clutch A-833 1969-1971A/B/C/E-bodies 273 318 340 360 Aluminum 2892480 LA 3spd & A-833(2892482) 1968-1971 2892482 10-1/2" clutch A-833 1969-1971A/B/C/E-bodies 273 318 340 360 Aluminum 2892482 LA A-833 10.5 clutch 1968-1969A-body Aluminum 2892624 B/RB 11" clutch A-833 1969B-body C-body 383 440 Cast Iron 2892511 3-spd B/RB (dual trans bolt pattern) 1970-1974 Aluminum 2892511 A-833 1970-1971B-body E-body 383 426 440 Aluminum 2892511 A-833 1972-1974B-body 400 440 Aluminum 2892513 A-833 1970-1971B-body E-body 383 426 440 Aluminum 2892513 A-833 1972-1974B-body 400 440 Aluminum 2892513 B/RB/hemi 10.5 clutch 1970-1971E-body Aluminum 2892626 11" clutch A-833 1969B-body C-body 383 440 Cast Iron 2895734 LA A-833 11 clutch 1973-1973E-body Aluminum 2899104 4spd 383 440 1969-1971Truck Cast Iron 2899105 4spd 383 440 1969-1971Truck Cast Iron 2899163 4spd 318 360 1969-1971Truck 2899164 4spd 318 360 1969-1971Truck 2902260 440 B-body A-833 1968 3487272 B/RB A250/A435 1973ishTruck 3491636 A-833 318 360 1972Truck 3491637 12" clutch A-833 400 413 440 1972-197Truck 3515732 10-1/2" clutch A-833 1972-1973A-body B-body E-body 318 340 Aluminum 3515732 LA 3spd & A-833 1972-1973A-body B-body E-body 3515734 10-1/2" clutch A-833 1972-1973A-body B-body E-body 318 340 Aluminum 3743077 10-1/2" clutch A-833 1974A-body B-body E-body 318 Aluminum 3743077 11" clutch A-833 1974A-body B-body E-body 360 Aluminum 3743077 LA 3spd & 4psd 1974 37439S9 11" clutch A-833 1974A-body B-body E-body 360 Aluminum 3743645 G/RG 3spd & OD A-833 1975-1976A-body F-body Aluminum 3743857 10-1/2" clutch A-833 318 1974-1977Truck 3743857 LA 3spd & A-833 1975-1976 3743859 LA A-833 10.5, 11 clutch 1974E-Body Aluminum 3743959 10-1/2" clutch A-833 1974A-body B-body E-body 318 Aluminum 3744536 11" clutch A-833 LA 1973Truck 3893728 LA 1981ishTruck 3893729 11" clutch A-833 1974-1977LA truck