Nope...the early ones 54-55 were Poly's (I have a 270cid Poly in my 55 Coronet) It wasn't until 56 that they were designated with the "A" poly such as the wide-block or Poly 318. Poly's such as mine were designated "Single rocker shaft engines" (Red Ram) and the Hemi 270 was designated a "Double rocker shaft motor" (Super Red Ram) To answer the question: Yes, the LA distributor will fit the Poly. I have one from a LA318 in my Poly 270, works just the same, fit is not an issue.
