[Mr70]

As has been discussed many times before,I think the 454 cars receiving Malibu vs. SS door emblems is a seperate issue altogether unrelated to the stripes.
Arlington was a new plant designation for the 1970 chevelle beginning in January 1970.There were two different stripe designs,and Arlington seemed to adhere to the squared corners design mostly.Many SS cars,be it 396 or 454 assembled there have been found with them,regardless of what time of year they were built.
So far I know of 3 January,2 March, and 4 June that received them.