Body plugs
 

Is there a source for the rectangular body plugs and the wiper connection cover on the cowling of 1966 Catalina convertible

Have you tried checking classic car restoration suppliers like Ames Performance or NIO ? in my opinion junkyards might help you locate original parts.

Restoration Specialties

Ames doesn't show any in the catalog. I went through restoration specialties catalog and didn't find anything. Not familiar with NOI.

Have a supply of desert parts car floor plugs, and rear Quarter drain plugs, but believe they are not what you are after. Am guessing what you are after is '65 to '70 B car specific, have seen the Wiper cover / plug on '69/'70 large Buicks.

There are only 3 plugs on top of the cowl that I know of. 2 are about 2 1/2 x 3 inches. Then the little one that covers the access for the wiper motor connection to the wiper arm assy. I have the large ones but was looking for new. The wiper one I misplaced and looking for a replacement. I would think these would used across all GM platforms for B bodies.

Next time I fly back to KC, maybe I schedule a long layover in PHX and make a run to Desert Auto yard.

There are only 3 plugs on top of the cowl that I know of. 2 are about 2 1/2 x 3 inches. Then the little one that covers the access for the wiper motor connection to the wiper arm assy. I have the large ones but was looking for new. The wiper one I misplaced and looking for a replacement. I would think these would used across all GM platforms for B bodies.

Next time I fly back to KC, maybe I schedule a long layover in PHX and make a run to Desert Auto yard.