One for all the Shelby Cobra experts

Ok, there's something that's been bothering me for a while now, and I can't even guess about the origins of the mystery. I was doing a re-reading an article about the "lost" Daytona coupe for about the millionth time, when upon examining the pictures, I noticed a huge mistake in the lettering on the door of the car. The car in quetion is chassis number CSX2287 and was the very first Daytona coupe produced. It was raced and retired and sat around the Shelby shop before being sold a few years later. The car was also used by Craig Breedlove and Bobby Tatroe to set speed records at bonneville before it was sold. But you can read all that stuff here http://www.cobracountry.com/articles-cobra/missing-coupe/
What I'd like to know is this: apparently the car must have been used for publicity purposes since it's accomplishments are hand-lettered on the doors. As well as I can make it out it says something to the effect of
DAYTONA COUPE COBRA GT
(can't read) World Champion
First American Champion
Land Speed Record 227mph
(can't read next line)
427 cu in engine
All the stuff on the door makes perfect sense and is documenetd fact, but what about the mention of the 427 engine? Although one car was almost turned into a big block coupe, it never got finished as a 427 car and was completed and raced it's entire career as a 289 car, just like all the other coupes. By looking at the engine pics you can clearly see it's a small block Ford. My guess is that either Shelby or Jim Russell had the thing lettered and they sure as hell knew what motor it had, and had the sign painter screwed up and accidently put the 427 cu in engine on there, they would have noticed it and had it corrected, wouldn't they? I know this may not exactly be the kinda stuff that makes the world go around, but I'm both curious and bored so if anyone out there knows, lets hear it!

Actually, Jim Russel bought it from Shelby, Spector bought it from him, then sold the car to his bodyguard, George Brand for $1,000, who in turn gave or sold the car to his daughter, Donna O'Hara who owned the car until a few days before her suicide when she apparently signed interest of the car over to Kurt Goss. The car was then sold to a Philadelphia nuerosurgeon for $3,750,000 where it is today, in unrestored condition.

A while back I went to the Monterey Historic races for the sole purpose of seeing a real Daytona coupe. I got to see 4 of them and was absolutley stunned at the nice people that own them. One of the cars was sitting in the pits, awaiting the race and I thought it would make a neat pic of my (at the time) 3year old son next to the car. I expected some flack, being the car is worth $5 million+, but even though my son was less than 2 feet from the car, by himself, no body yelled or had a heart attack or even seemed to care. Cool.