in 25 years of documenting, owning and researching SS427 Impalas, I have never heard of or seen any legit cars. With that being said, it was very possible as you all know to go into Chevrolet or some dealers with $$ and order almost any combination possible. I just have never seen one. I also know of no engine prefix for this in an Impala. I also checked
www.impalass427.com and there is no mention there as well.
Anyone have a documented car?
[Edited by SS427 (02-18-2002 at 01:40 PM).]