The Chevrolet dealer in Penticton now is named Sentes Chevrolet, and I've been doing business with them since about 1986, which is about when they bought it.
I can hunt around for a dealer emblem for you because I'm on good terms with a couple of wreckers that have some older stuff. I don't remember Grove, as I didn't actually start living in the area until the mid 80's. Although I was there in the mid 70's too.
Performance was alive and well in the area though, as we had a strip going in the Cawston area, between Keremeos and Osoyoos in the mid 70's.
Here is the thread with photos.
https://www.yenko.net/ubbthreads/show...2/fpart/1/vc/1
I'm in Fort McMurray right now, but I'll go on a treasure hunt on my next trip back. Except for this next trip to see my new Grandchild, due any day!