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rotorwrench · 07-13-2019, 10:00 AM

Some Ford blocks have a date code stamped into the intake manifold deck but it usually only a short number letter sequence. The number letter sequence followed by CAT is an unknown but may be Canadian, military, industrial, or something of that nature. VINs were different in the USA during that post war time frame and they are rarely stamped on the engine.

07-13-2019, 10:00 AM	#5
rotorwrench Senior Member Join Date: Jun 2010 Location: San Antonio, Texas Posts: 16,431	Re: Help with Engine dating Some Ford blocks have a date code stamped into the intake manifold deck but it usually only a short number letter sequence. The number letter sequence followed by CAT is an unknown but may be Canadian, military, industrial, or something of that nature. VINs were different in the USA during that post war time frame and they are rarely stamped on the engine.