There might be a size in the Chevy Rally Wheel realm of things. They are in different non-GM bolt circles, too. I believe Wheel Vintiques has them? A similar look but might not have the nub cap nubs for a Chrysler hub cap, as the GM center caps snapped "in" rather than "on".
There are some non-Chevy snap-in center caps. There are different manufacturers of these wheels, too. Main difference is in the outer rim "steps" and which trim rings will fit, as a result. Most are painted/coated in "silver", but a few come in "primer", for a possible "Super Bee Six-Pack look" of black with chrome lug nuts
CBODY67