Jun 10, 2024 #1 SGT FURY Senior Member Joined Nov 18, 2019 Messages 2,469 Reaction score 3,355 Location Northern California What do these engine numbers mean? MR413 27478 Marine 1961 ?
Jun 10, 2024 #2 6 69chrysler300vert New Member Joined Mar 14, 2023 Messages 16 Reaction score 14 Location Pittsburgh PA I can tell you the 27478 means April 27 1978 which is when the engine was assembled
Jun 10, 2024 #3 4 413 Senior Member Joined Jan 28, 2019 Messages 2,006 Reaction score 2,317 Location NW USA No on both posts above. Not marine and not 1978. What is the block casting date on the side? It will be 1958/59 because the MR413 engine is a 1959 passenger car engine. Not just a 300 engine, they all have MR413 for 1959.. They don't know what the 5 digits mean. eid Last edited: Jun 10, 2024
No on both posts above. Not marine and not 1978. What is the block casting date on the side? It will be 1958/59 because the MR413 engine is a 1959 passenger car engine. Not just a 300 engine, they all have MR413 for 1959.. They don't know what the 5 digits mean. eid