[computerworks]

I can't be much help with visual clues for the Ace radiator...but I can give some manufacturer data, pulled from the books:

The standard Ace used a Marston core, while the 2.6 Ace used a Gallay one.

As far as Cobras go, the 260 cars used the Gallay core from the Ace...then, it was changed over to the Corvette (Harrison) one for a bit. Finally, the McCord was used on most 289s.

Hope some of the CSX2000 fans can add to this.