Re: Approximate production dates?

Posted by Randy Berger On 2013/10/19 16:54:05

The 4121 means this was number 3121 of the 56 400s built.
Number starts at 1001 for the different cars, Patrician, The Four Hundred, Caribbean.
At the back of the engine you will find an engine casting date which will tell you when the block casting was poured. It is difficult to see as it is down behind the distributor.
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