Factory ink stamping on a 351 July 27, 2006, 11:01:49 AM what would ford mean when they stamped with yellow ink the numbers "331" on the passanger valve cover? They used a ink stamp kit to put the numbers on and im curious as to what this means.the motor was a 351 carb'd setup and looks to be late 70's early 80's Quote Selected
Factory ink stamping on a 351 Reply #1 – July 27, 2006, 02:47:21 PM pure guess..............date code................33rd week 1981 Quote Selected
Factory ink stamping on a 351 Reply #2 – July 27, 2006, 08:02:20 PM They missplaced the 5 that day... Quote Selected
Topic: Factory ink stamping on a 351 (Read 592 times)
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