[What'saCobra?]

I haven't seen a 428 Cobra for years and years. Nobody, but nobody wanted them when they were new, except poseurs and the seriously uninformed. Who wants one today? Nobody.

Sure, there were many non-side oiler 427 Cobras. Not easy to tell which was or wasn't installed from the thinnly documented factory records.

SA was "discreet" in not bothering to mention either 427 vs 428 or side-oiler availability or tunnel-port intake and heads, except on race cars. Most dealers didn't have a clue and took what was shoved at them. If they did discover any variances, they certainly didn't point them out to the potential buyer.

Some would say "misleading." Even "fraudulent." But, that would make me unkind, wouldn't it?

Or am I being too picky for expecting a 427 Cobra to contain a 427 engine, rather than a 428?

This was not a minor issue in the day amongst the cognicenti and torqued a lot of loyal customers off big time when they discovered the switcheroo, about which they could do and did nothing. As a result of this and other wacko SA blunders, many cars remained unsold for quite a while. But eventually they were all shifted when Remmington (?) suggested the S/C approach.