All the original 69 z-28 rockers I have seen have the big O's, but I have been told there is no rule to that. Maybe someone can ad to that. It is hard tell in that picture which size O it is, but side by side you sure can tell a difference. I was told the different size O's came from different suppliers. I have seen a 69 Z with 13 big O's and 3 small O's. Maybe it came from the factory that way or maybe 3 were changed. Hope that helps a little.
A forum community dedicated to 1st generation Chevy Camaros owners and enthusiasts. Come join the discussion about performance, builds, restoration, modifications, classifieds, troubleshooting, reviews, and more!