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Can anyone tell me why my engine block number (7.4JU2U1296540*) doesn't seem to resemble other 7.3 engine number formats in all these forums? Right now, I really want to know the build date so I can determine what coolant to use. Also, it would be great to learn more about the build of this engine. If anyone can provide any info I will greatly appreciate it. 7.3 Powerstroke Engine Block Numbers
