Mopar Engine Casting Numbers 1959-1978
The block casting numbers for all RB, B, and LA engines are found on the left (driver) side of the block. In addition, on 1968 and later engines the numbers stamped on the lower rail of the engines right (passenger) side match the last 8 digits of the cars vehicle identification number.

 
Casting Number on LH Side of Engine VIN Number Stamped on RH Engine Pad
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
2468130 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
 
 


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