Taking up an old hobby

The wheels on the 68 RR look like fairly modern "aftermarket" 1/25 accessories.
Where did you find those?
All the ones I see are WAY too modern- lacy, low profile, 18-22", even gold.

There was a slant six offered in 1/25. I forget offhand what kit it was in, but I have one.
It's not the Revell early Valiant one, though. I have one of those, too.
As if the first one wasn't hard enough to find, I've never seen another early Valiant.
There is a coarse small block offered in the 41 Plymouth kit, and a much better one in the 340 Duster.
I've not seen a poly.
Of course any 440 could be used as a 426/413 or even a B block.