Fox T-Bird/Cougar Forums

Technical => Engine Tech => Topic started by: jcassity on July 27, 2006, 11:01:49 AM

Title: Factory ink stamping on a 351
Post by: jcassity on 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
Title: Factory ink stamping on a 351
Post by: mjbtbrd on July 27, 2006, 02:47:21 PM
pure guess..............date code................33rd week 1981
Title: Factory ink stamping on a 351
Post by: 4mykid on July 27, 2006, 08:02:20 PM
They missplaced the 5 that day...;)