Frame?Can you Date a Frame By Vin#

[31Tudor]

The frame was stamped with the engine number as the engine was put into the frame. So...the frame number should coincide with the same engine numbering month and date from the engine number charts.

[Terry, NJ]

Originally Posted by 31Tudor

The frame was stamped with the engine number as the engine was put into the frame. So...the frame number should coincide with the same engine numbering month and date from the engine number charts.

Were the Frames and engines numbered on the same day? Or at their respective assembly? My engine number is not the same as the chassis number, which is the same as the title. Engine switch? Or they never did match?
Terry