Mop
| MOPAR
HEAD CASTING NUMBERS 1959-1978 |
| LA
Engine Cylinder Head Casting Numbers |
The
casting numbers for most RB, B, and LA heads are found in two
places. On the underside of the head on an intake runner, and
under the valve cover on an intake runner as illustrated below.
 |
 |
| Casting Number
Under Valve Cover on Intake Runner. |
Casting Number on
the Underside of Head on Intake Runner. |
| Casting
Number |
Engine
CID |
Year |
Intake |
Exhaust |
| 2465315 |
273 |
1964-65 |
1.78 |
1.50 |
| 2536178 |
273 |
1966 |
1.78 |
1.50 |
| 2658920 |
273 |
1967 |
1.78 |
1.50 |
| 2843675 |
273 |
1968-69 |
1.78 |
1.50 |
| 2658920 |
318 |
1967 |
1.78 |
1.50 |
| 2658234 |
318 |
1967 |
1.78 |
1.50 |
| 2843675 |
318 |
1968-74 |
1.78 |
1.50 |
| 3769973 |
318 |
1975-83 |
1.78 |
1.50 |
| 4027163 |
318 |
1977-86 |
1.78 |
1.50 |
| 4027593 |
318 |
1977-84 |
1.78 |
1.50 |
| 4323302 |
318 Fast
Burn |
1985-86 |
1.78 |
1.50 |
| 4323345 |
318 Police |
1983-86 |
1.78 |
1.50 |
| 2531894 |
340 |
1968-70 |
2.02 |
1.60 |
| 3418915 |
340TA |
1970 |
2.02 |
1.60 |
| 3418915 |
340 |
1971-72 |
1.88 |
1.60 |
| 3671587 |
340 |
1973 |
1.88 |
1.60 |
| 3418915 |
360 |
1970-72 |
1.88 |
1.60 |
| 3671587 |
360 |
1973-74 |
1.88 |
1.60 |
| 3769974 |
360 |
1975-76 |
1.88 |
1.60 |
| 3671587 |
360 |
1976 |
1.88 |
1.60 |
| 4027569 |
360 |
1977-86 |
1.88 |
1.60 |
|
RB/B
Engine Cylinder Heads Casting Numbers |
| Casting
Number |
Engine
CID |
Year |
Intake |
Exhaust |
| 4021051 |
360 |
1977-86 |
1.88 |
1.60 |
| 1737637 |
361 |
1958-59 |
1.94 |
1.60 |
| 1944705 |
361 |
1958-59 |
1.94 |
1.60 |
| 1737637 |
383 |
1960 |
1.94 |
1.60 |
| 2206324 |
361/383/413 |
1961-62 |
2.08 |
1.60 |
| 2206924 |
361/383/413 |
1961-62 |
2.08 |
1.60 |
| 2463200 |
361/383/413 |
1963 |
2.08 |
1.60 |
| 2406516 |
361/383 |
1964-67 |
2.08 |
1.60 |
| 2402286 |
413 Max
Wedge |
1962 |
2.08 |
1.88 |
| 2463209 |
426 Max
Wedge |
1963 |
2.08 |
1.88 |
| 2406518 |
426 Max
Wedge |
1964 |
2.08 |
1.88 |
| 2406158 |
440 |
1967 |
2.08 |
1.60 |
| 2780915 |
440HP |
1967 |
2.08 |
1.74 |
| 2843906 |
383/440 |
1968-70 |
2.08 |
1.74 |
| 2951250 |
440 |
1968 |
2.08 |
1.74 |
| 3462346 |
383/400/440 |
1971-72 |
2.08 |
1.74 |
| 3462346 |
400/440 |
1973 |
2.08 |
1.74 |
| 3751213 |
400/440
Motor Home |
1973 |
2.08 |
1.74 |
| 3769902 |
400/440 |
1974 |
2.08 |
1.74 |
| 3769975 |
400/440 |
1975 |
2.08 |
1.74 |
| 4006452 |
400/440 |
1976-78 |
2.08 |
1.74 |
| Hemi
Engine Cylinder Heads Casting Numbers |
| Casting
Number |
Engine
CID |
Year |
Intake |
Exhaust |
| 2468016 |
426 Hemi |
1964 |
2.25 |
1.94 |
| 2531110 |
426 Hemi
(SS) - Aluminum |
1965 |
2.25 |
1.94 |
| 2780559 |
426 Hemi |
1966-71 |
2.25 |
1.94 |