Hello and welcome to the Forum!
-This is the "New Comers, welcome forum-
You might try posting this in the "Engine/performance forum
BUT:
Here is a chart showing Block casting numbers:
CASTING NUMBER SIZE FAMILY YEARS OTHER COMMENTS
1737629 361 1961 - 1964
1851629 413 RB 1961
1852029 413 RB 1962
1852029 413 RB 1962-63
1852029 426 RB 1962-65
2120229 361 B
2120329 383 RB 1959-60
2120429 361 B
2120529 413 RB 1959-65
2128854 361 or 383 B 1964
2202843 170 G
2202857 225 RG
2205528 225 RG
2205630 170 G
2205697 413 or 426 RB 1959-65
2205712 361 B 1958-66
2264230 318 A 1960-67
2264478 170 G
2406730 426 RB 1963-65
2440873 426 RB
2463230 170 G 1965
2463252 273 LA
2463430 225 RG 1966
2465330 273 LA 1964-66
2466090 318 LA
2468030 413 or 426 RB
2468130 383 B 1959-71
2468230 318 A
2468330 426 RB 1964-65
2468330 426 RB 1966-71 HEMI
2532130 383 B 1965
2532230 426 RB 1964-66 Wedge
2532630 318 A
2536030 318 LA 1967-75
2536130 273 LA 1965
2536430 440 RB 1966-72
2566080 318 LA
2586430 ??? ?? ????
Contact Us If You Have Info
2658836 426 RB
2658930 361 B 1965
2780930 340 LA 1968-73 Not T/A or AAR
2806030 273 LA 1966-69
2806030 318 LA 1961-74
2806130 273 LA 1965-69
2806830 225 RG
2899830 383 B 1970
3418496 360 LA 1971-74
3577130TA 340 TA LA 1970-71
T/A and
AAR
3614230 400 B 1971-72
3698630 400 B 1973-78
3698830 440 RB 1972-78
3810230 360 LA 1975-78
4006530 400 B 1976-78
4006630 440 RB 1975-78
4104230 318 LA Race
Engine
4179930 360 LA 1975 - 1993
Please note that this isn’t a complete list of the
Mopar Engine Casting Numbers.
OR:
Casting Number CID Year Type Remarks
2202843 170 1960-64 G
2463230 170 1965 G
2463395 170 - G
2264478 170 - G
2205630 170 - G
2463430 225 1966 RG
2806830 225 1968-70 RG Includes 198
3462605 225 1975 RG
2951694 225 - RG
2202857 225 - RG
2205528 225 - RG
2465330 273 1964-66 LA
2806030 273 1966-69 LA
2463252 273 - LA
2536130 273 1965-69 LA
2806130 273 1966-69 LA
2264230 318 1960-66 A Polysphere
2468230 318 - A Polysphere
2532630 318 - A Polysphere
2466090 318 1967-74 LA
2806030 318 1966-69 LA
2806030 318 1967-74 LA
2536030 318 1967-75 LA
2566080 318 - LA
4104230 318 - LA Race - Painted Orange
2780930 340 1968-73 LA Except T/A & AAR
3577130TA 340 - 6 bbl 1970 LA T/A & AAR
1944929 350 1958
3418496 360 1971-74 LA
3870230 360 1975-78 LA
4179930 360 1975-1993 LA
1737629 361 1961-64 B
2120329 361 1958-66 B
2120429 361 - B
2128854 361 1964 B
2205712 361 1958-66 B
1945429 361 1965 B
2658930 361 1965 B
2120229 361 - B Industrial
1852029 413 1959-62 RB Max Perf. & Truck
2120529 413 1959-65 RB
2205697 413 1959-65 RB Passenger Car
2468030 413 - RB
2658836 413 - RB Industrial
2205697 426 1964 RB Passenger Car
2406730 426 1963-65 RB Wedge & Max Perf.
1852029 426 1962-65 RB Wedge
2468030 426 - RB Wedge
2440873 426 - RB Wedge
2532230 426 1964-66 RB Wedge & Max Perf.
2658836 426 - RB Industrial
1851729 383 1959-64 B
2128854 383 1964 B
2532130 383 1965 B
2120329 383 1959-60 RB Golden Lion
2899830 383 1970 B
2568130 383 1959-71 B
2468330 426 1964-71 RB Hemi Head
2536430 440 1966-72 RB
2658836 426 - RB Industrial
3614230 400 1971-72 B
3698630 400 1973-78 B
4006530 400 1976-78 B
3698830 440 1973-78 RB
4006530 400 1976-78 B
4006630 440 1978 RB
Sorry, cant seem to find that number
More research is needed